I apologize for the error in my previous response.

I have reexamined the documents you provided

and have compiled a completely new set of questions as requested, with 50 questions each for
Zoology, Botany, Chemistry, and Physics.
50 Zoology Questions
* What is the function of the sinoatrial (SA) node in the human heart?
a) To regulate blood pressure
b) To initiate the heartbeat
c) To filter blood
d) To transport oxygen
* Which phylum do sponges belong to?
a) Porifera
b) Cnidaria
c) Mollusca
d) Annelida
* The process of a caterpillar changing into a butterfly is called:
a) Regeneration
b) Metamorphosis
c) Fission
d) Budding
* Which of the following is the largest gland in the human body?
a) Thyroid gland
b) Pancreas
c) Liver
d) Pituitary gland
* What is the primary function of hemoglobin in red blood cells?
a) To fight infection
b) To carry oxygen
c) To clot blood
d) To produce antibodies
* Which part of the brain is responsible for controlling balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Thalamus
* The study of insects is known as:
a) Ornithology
b) Ichthyology
c) Entomology
d) Herpetology
* Which of the following is a cold-blooded animal?
a) Whale
b) Bat
c) Snake
d) Eagle
* What is the main function of the kidneys in the human body?
a) To digest food
b) To filter waste from the blood
c) To produce hormones
d) To store energy
* Which of the following is a characteristic of mammals?
a) Lay eggs
b) Have gills
c) Have mammary glands
d) Are cold-blooded
* The site of aerobic respiration in animal cells is the:
a) Nucleus
b) Cytoplasm
c) Mitochondria
d) Ribosome
* What is the smallest unit of life in the animal kingdom?
a) Tissue
b) Organ
c) Cell
d) System
* Which of the following is a type of white blood cell?
 a) Erythrocyte
b) Leukocyte
c) Platelet
d) Plasma
* The process by which an organism produces offspring is called:
a) Digestion
b) Respiration
c) Reproduction
d) Excretion
* What is the function of the gallbladder?
a) To produce bile
b) To store bile
c) To digest fats
d) To absorb nutrients
* Which of the following animals is a marsupial?
a) Lion
b) Kangaroo
c) Bear
d) Dolphin
* The scientific name for the human species is:
a) Homo sapiens
b) Panthera leo
c) Canis familiaris
d) Felis catus
* What is the primary function of the pancreas?
a) To produce stomach acid
b) To regulate blood sugar
c) To store glycogen
d) To filter toxins
* Which of the following is a type of joint found in the human knee?
a) Ball-and-socket joint
b) Hinge joint
c) Pivot joint
d) Saddle joint
* The pituitary gland is also known as the:
a) Master gland
b) Thyroid gland
c) Adrenal gland
d) Pineal gland
* What is the process of a fish taking in oxygen from water?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Evaporation
* Which of the following is a vertebrate?
a) Jellyfish
b) Earthworm
c) Snake
d) Snail
* What is the primary function of the trachea?
a) To transport food to the stomach
b) To transport air to the lungs
c) To pump blood
d) To filter blood
* The largest organ of the human body is the:
a) Liver
b) Skin
c) Brain
d) Heart
* Which of the following is a carnivorous animal?
a) Cow
b) Rabbit
c) Tiger
d) Deer
* What is the scientific study of birds?
 a) Mycology
b) Ornithology
c) Entomology
d) Anthropology
* The main function of platelets is:
a) To fight infection
b) To transport oxygen
c) To clot blood
d) To produce antibodies
* Which of the following is a type of arthropod?
a) Octopus
b) Starfish
c) Spider
d) Earthworm
* What is the function of the retina in the human eye?
a) To focus light
b) To protect the eye
c) To detect light and color
d) To produce tears
* The process of breaking down food into smaller molecules is called:
a) Respiration
b) Circulation
c) Digestion
d) Excretion
* Which of the following is a cartilaginous fish?
a) Tuna
b) Salmon
c) Shark
d) Trout
* The main site of nutrient absorption in the human body is the:
a) Stomach
b) Large intestine
c) Small intestine
d) Liver
* What is the process of a plant-eating animal gaining energy from food?
a) Photosynthesis
b) Respiration
c) Metabolism
d) Transpiration
* Which of the following is a parasitic organism?
a) Tapeworm
b) Butterfly
c) Elephant
d) Dog
* What is the primary function of the esophagus?
a) To digest food
b) To transport food to the stomach
c) To absorb nutrients
d) To filter waste
* The scientific name for a domestic dog is:
a) Canis lupus
b) Canis familiaris
c) Felis catus
d) Panthera tigris
* Which of the following is a type of mollusk?
a) Jellyfish
b) Earthworm
c) Snail
d) Starfish
* What is the primary component of blood plasma?
a) Red blood cells
b) White blood cells
c) Water
d) Platelets
* The process of an animal shedding its skin is called:
 a) Molting
b) Hibernation
c) Metamorphosis
d) Estivation
* Which of the following is a mammal that can fly?
a) Penguin
b) Ostrich
c) Bat
d) Hummingbird
* What is the function of the thyroid gland?
a) To regulate blood pressure
b) To control metabolism
c) To filter blood
d) To produce adrenaline
* The main site of water absorption in the human digestive system is the:
a) Stomach
b) Small intestine
c) Large intestine
d) Liver
* Which of the following is an amphibian?
a) Lizard
b) Snake
c) Frog
d) Crocodile
* The scientific study of fish is known as:
a) Ichthyology
b) Herpetology
c) Entomology
d) Ornithology
* What is the primary function of the spleen?
a) To digest food
b) To produce hormones
c) To filter blood and store red blood cells
d) To produce bile
* Which of the following is an invertebrate?
a) Fish
b) Bird
c) Insect
d) Mammal
* The process of a single-celled organism dividing to form two new organisms is called:
a) Budding
b) Fission
c) Regeneration
d) Fragmentation
* What is the primary function of the larynx?
a) To produce sound
b) To transport air
c) To filter air
d) To protect the lungs
* Which of the following is a reptile?
a) Frog
b) Salamander
c) Snake
d) Penguin
* The scientific name for the common housefly is:
a) Musca domestica
b) Drosophila melanogaster
c) Aedes aegypti
d) Anopheles gambiae
50 Botany Questions
* What is the process by which plants use sunlight, water, and carbon dioxide to create their own
food?
a) Respiration
b) Transpiration
c) Photosynthesis
 d) Fermentation
* Which part of a plant is responsible for absorbing water and nutrients from the soil?
a) Leaves
b) Stem
c) Roots
d) Flowers
* What is the green pigment found in plants that is essential for photosynthesis?
a) Carotene
b) Chlorophyll
c) Xanthophyll
d) Anthocyanin
* The process of water vapor escaping from the leaves of plants is called:
a) Respiration
b) Transpiration
c) Photosynthesis
d) Evaporation
* Which of the following is a type of plant that does not have true roots, stems, or leaves?
a) Ferns
b) Mosses
c) Conifers
d) Flowering plants
* What is the main function of the stomata on a plant leaf?
a) To absorb sunlight
b) To produce oxygen
c) To allow for gas exchange
d) To transport water
* Which of the following is a non-flowering plant?
a) Sunflower
b) Rose
c) Pine tree
d) Lily
* The process of a pollen grain being transferred from the anther to the stigma is called:
a) Fertilization
b) Germination
c) Pollination
d) Dispersion
* What is the primary function of the xylem in a plant?
a) To transport food
b) To transport water
c) To provide support
d) To store energy
* Which of the following is an example of a dicot plant?
a) Rice
b) Wheat
c) Corn
d) Rose
* The site of photosynthesis in a plant cell is the:
a) Nucleus
b) Cytoplasm
c) Chloroplast
d) Vacuole
* What is the process of a seed beginning to grow into a new plant?
a) Germination
b) Reproduction
c) Respiration
d) Transpiration
* Which of the following is a part of the male reproductive organ of a flower?
a) Stigma
b) Ovary
c) Style
d) Anther
* The fruit of a plant develops from which part of the flower?
a) Petals
b) Sepals
c) Ovary
 d) Stamen
* What is the primary function of the phloem in a plant?
a) To transport water
b) To transport food
c) To provide support
d) To absorb nutrients
* Which of the following is a type of asexual reproduction in plants?
a) Pollination
b) Fertilization
c) Budding
d) Seed formation
* The outermost layer of a plant cell is the:
a) Cell membrane
b) Cell wall
c) Nucleus
d) Cytoplasm
* What is the main function of the sepals of a flower?
a) To attract pollinators
b) To protect the flower bud
c) To produce pollen
d) To receive pollen
* Which of the following is a characteristic of a monocot plant?
a) Taproot system
b) Net-like leaf venation
c) Vascular bundles scattered in the stem
d) Flower parts in multiples of four or five
* The process of a plant bending towards a source of light is called:
a) Geotropism
b) Thigmotropism
c) Hydrotropism
d) Phototropism
* What is the primary gas released by plants during photosynthesis?
a) Carbon dioxide
b) Oxygen
c) Nitrogen
d) Hydrogen
* The scientific study of fungi is known as:
a) Botany
b) Zoology
c) Mycology
d) Virology
* Which of the following is an example of a fibrous root system?
a) Carrot
b) Radish
c) Grass
d) Turnip
* The calyptra is a protective covering found in which part of a plant?
a) Stem
b) Flower
c) Root
d) Leaf
* What is the process of water moving from an area of high concentration to low concentration
across a semipermeable membrane?
a) Diffusion
b) Osmosis
c) Transpiration
d) Photosynthesis
* Which of the following is a type of gymnosperm?
a) Apple tree
b) Pine tree
c) Rose bush
d) Oak tree
* The food-producing part of a plant is primarily the:
a) Roots
b) Stem
 c) Leaves
d) Flowers
* What is the main function of guard cells?
a) To transport water
b) To open and close the stomata
c) To provide structural support
d) To produce chlorophyll
* The process of a plant's roots growing downwards in response to gravity is called:
a) Phototropism
b) Geotropism
c) Thigmotropism
d) Hydrotropism
* Which of the following is a type of flowering plant?
a) Fern
b) Moss
c) Algae
d) Orchid
* What is the name of the male reproductive part of a flower that produces pollen?
a) Pistil
b) Stamen
c) Petal
d) Sepal
* The process of a plant losing water through its stomata is regulated by which hormone?
a) Auxin
b) Cytokinin
c) Abscisic acid
d) Gibberellin
* Which of the following is a type of fruit that develops from a single flower with a single carpel?
a) Simple fruit
b) Aggregate fruit
c) Multiple fruit
d) Accessory fruit
* What is the scientific study of algae?
a) Mycology
b) Phycology
c) Bryology
d) Dendrology
* The endosperm of a seed is responsible for:
a) Protecting the embryo
b) Providing nourishment to the embryo
c) Dispersing the seed
d) Germination
* Which of the following is a type of vascular tissue?
a) Epidermis
b) Parenchyma
c) Xylem
d) Collenchyma
* The process of a plant's growth in response to touch is called:
a) Phototropism
b) Geotropism
c) Thigmotropism
d) Hydrotropism
* Which of the following is an example of a taproot system?
a) Onion
b) Carrot
c) Grass
d) Wheat
* What is the chemical formula for glucose, the food produced by plants?
a) CO₂
b) H₂O
c) C₆H₁₂O₆
d) O₂
* The term bryophyte refers to which group of plants?
a) Algae
b) Mosses and liverworts
 c) Ferns
d) Conifers
* What is the main function of petals of a flower?
a) To protect the flower bud
b) To attract pollinators
c) To produce pollen
d) To transport water
* The process of a seed coat breaking open is called:
a) Dormancy
b) Germination
c) Stratification
d) Imbibition
* Which of the following is a type of fungus that is symbiotic with the roots of plants?
a) Mycorrhiza
b) Lichen
c) Yeast
d) Mold
* What is the primary function of root hairs?
a) To provide support
b) To absorb water and nutrients
c) To store food
d) To anchor the plant
* The process of a plant's roots growing towards water is called:
a) Phototropism
b) Geotropism
c) Thigmotropism
d) Hydrotropism
* Which of the following is a characteristic of ferns?
a) They produce flowers
b) They reproduce by seeds
c) They reproduce by spores
d) They do not have roots
* The main site of cellular respiration in a plant cell is the:
a) Chloroplast
b) Mitochondria
c) Vacuole
d) Cell wall
* What is the name of the female reproductive part of a flower?
a) Stamen
b) Pistil
c) Sepal
d) Petal
* Which of the following is an example of a composite fruit?
a) Mango
b) Apple
c) Pineapple
d) Strawberry
* The study of the internal structure of plants is called:
a) Plant anatomy
b) Plant physiology
c) Plant morphology
d) Plant ecology
50 Chemistry Questions
* What is the molar mass of water (H₂O)? (Atomic masses: H=1, O=16)
a) 17 g/mol
b) 18 g/mol
c) 20 g/mol
d) 32 g/mol
* The chemical formula for sulfuric acid is:
a) H₂SO₃
b) H₂SO₄
c) HCl
d) HNO₃
* Which of the following is a covalent bond?
a) The bond in NaCl
 b) The bond in H₂
c) The bond in KBr
d) The bond in MgO
* What is the process of a substance gaining an electron?
a) Oxidation
b) Reduction
c) Neutralization
d) Ionization
* The pH of a basic solution is:
a) Less than 7
b) Equal to 7
c) Greater than 7
d) Equal to 0
* Which of the following is an alkali metal?
a) Calcium
b) Magnesium
c) Potassium
d) Iron
* What is the most abundant gas in the Earth's atmosphere?
a) Oxygen
b) Nitrogen
c) Argon
d) Carbon dioxide
* The reaction between an acid and a base is called:
a) Oxidation
b) Reduction
c) Neutralization
d) Combustion
* What is the chemical formula for table salt?
a) NaCl
b) KCl
c) CaCl₂
d) MgCl₂
* The mass of an atom is primarily determined by the number of:
a) Electrons and protons
b) Protons and neutrons
c) Electrons and neutrons
d) Protons only
* What is the primary product of the combustion of methane (CH_4)?
a) Carbon monoxide and water
b) Carbon dioxide and water
c) Carbon and water
d) Hydrogen and water
* Which of the following is a noble gas?
a) Chlorine
b) Oxygen
c) Neon
d) Hydrogen
* The process of a solid turning directly into a gas without becoming a liquid is called:
a) Condensation
b) Sublimation
c) Evaporation
d) Melting
* What is the oxidation state of hydrogen in most compounds?
a) +1
b) -1
c) +2
d) 0
* The bond formed by the transfer of electrons from one atom to another is called:
a) Covalent bond
b) Ionic bond
c) Metallic bond
d) Hydrogen bond
* What is the chemical formula for calcium hydroxide?
a) CaO
 b) CaCO₃
c) Ca(OH)₂
d) CaCl₂
* What is the primary component of limestone?
a) Calcium oxide
b) Calcium carbonate
c) Magnesium carbonate
d) Sodium chloride
* The law that states that matter cannot be created or destroyed in a chemical reaction is the:
a) Law of Conservation of Mass
b) Law of Conservation of Energy
c) Law of Definite Proportions
d) Avogadro's Law
* What is the name of the compound with the formula CO_2?
a) Carbon monoxide
b) Carbon dioxide
c) Calcium carbonate
d) Carbonate
* The compound responsible for the hardness of water is typically:
a) Sodium chloride
b) Calcium and magnesium ions
c) Potassium iodide
d) Iron oxide
* What is the volume of 1 mole of any gas at standard temperature and pressure (STP)?
a) 22.4 L
b) 11.2 L
c) 44.8 L
d) 1 L
* The process of a substance losing electrons is known as:
a) Oxidation
b) Reduction
c) Neutralization
d) Electrolysis
* What is the chemical formula for ammonia?
a) NH₄
b) NH₃
c) N₂O
d) NO₂
* The minimum energy required to start a chemical reaction is called:
a) Activation energy
b) Potential energy
c) Kinetic energy
d) Bond energy
* The process of a solution becoming less concentrated by adding more solvent is called:
a) Saturation
b) Dilution
c) Evaporation
d) Crystallization
* What is the chemical formula for nitric acid?
a) HNO₂
b) HNO₃
c) H₂NO₃
d) H₃NO₃
* Which of the following is a halide?
a) Chloride
b) Sulfate
c) Nitrate
d) Carbonate
* The number of protons in an atom's nucleus is its:
a) Mass number
b) Atomic number
c) Isotope number
d) Valence number
* What is the primary component of vinegar?
a) Formic acid
 b) Acetic acid
c) Citric acid
d) Lactic acid
* The process of an atom gaining or losing electrons to become an ion is called:
a) Ionization
b) Neutralization
c) Oxidation
d) Reduction
* What is the chemical formula for ethanol?
a) CH₄
b) C₂H₆O
c) CH₃OH
d) C₃H₈
* Which of the following is a strong acid?
a) Acetic acid
b) Carbonic acid
c) Hydrochloric acid
d) Citric acid
* The process of a metal reacting with oxygen to form a metal oxide is known as:
a) Reduction
b) Corrosion
c) Electrolysis
d) Neutralization
* What is the chemical symbol for mercury?
a) Mg
b) Mn
c) Hg
d) Me
* The movement of solvent molecules across a semipermeable membrane is called:
a) Diffusion
b) Osmosis
c) Effusion
d) Adsorption
* What is the name of the compound with the formula NH_3?
a) Nitrogen trihydride
b) Ammonium
c) Ammonia
d) Methane
* Which of the following is a transition metal?
a) Sodium
b) Calcium
c) Iron
d) Aluminum
* The process of a gas turning into a liquid is called:
a) Evaporation
b) Condensation
c) Sublimation
d) Freezing
* What is the chemical formula for methane?
a) CH₂
b) C₂H₄
c) C₂H₆
d) CH₄
* The amount of heat required to raise the temperature of 1 gram of a substance by 1°C is its:
a) Latent heat
b) Specific heat capacity
c) Heat of fusion
d) Heat of vaporization
* What is the chemical symbol for lead?
a) Ld
b) Pb
c) Pd
d) Pl
* Which of the following is an organic compound?
a) NaCl
 b) H₂O
c) CH₄
d) CO₂
* The process of a substance breaking down due to electricity is called:
a) Hydrolysis
b) Electrolysis
c) Photolysis
d) Pyrolysis
* What is the chemical formula for potassium chloride?
a) PCl
b) KClO
c) KCl
d) PCl₃
* The change in the state of a substance from liquid to gas at its boiling point is:
a) Evaporation
b) Boiling
c) Sublimation
d) Condensation
* What is the name of the ion OH⁻?
a) Hydronium ion
b) Hydroxide ion
c) Oxide ion
d) Hydride ion
* What is the chemical symbol for silver?
a) Si
b) Au
c) Ag
d) Ar
* The process of a substance dissolving in a solvent to form a solution is called:
a) Precipitation
b) Solvation
c) Crystallization
d) Dissolution
* What is the chemical formula for carbon monoxide?
a) CO
b) CO₂
c) CaO
d) C₂O
* Which of the following is a base?
a) HCl
b) H₂SO₄
c) NaOH
d) HNO₃
50 Physics Questions
* A car travels at a constant velocity of 25 m/s for 5 minutes. What is the distance covered?
a) 7500 m
b) 125 m
c) 1500 m
d) 750 m
* A force of 200 N is applied to a block of mass 40 kg. What is the acceleration?
a) 5 m/s²
b) 10 m/s²
c) 2 m/s²
d) 4 m/s²
* What is the kinetic energy of a 5 kg object moving at a velocity of 4 m/s?
a) 20 J
b) 40 J
c) 50 J
d) 80 J
* A circuit has a voltage of 40 V and a resistance of 8 Ω. What is the current flowing through it?
a) 5 A
b) 8 A
c) 10 A
d) 32 A
* What is the value of the acceleration due to gravity on Earth?
 a) 3 \times 10⁸ m/s
b) 9.8 m/s²
c) 340 m/s
d) 6.67 x 10⁻¹¹ N m²/kg²
* A ball is thrown vertically upward with an initial velocity of 30 m/s. How long does it take to reach
the highest point? (Assume g = 10 m/s²)
a) 2 s
b) 3 s
c) 4 s
d) 5 s
* An object's velocity changes from 5 m/s to 25 m/s in 4 seconds. What is its acceleration?
a) 2 m/s²
b) 4 m/s²
c) 5 m/s²
d) 6 m/s²
* Two capacitors, 6 μF and 12 μF, are connected in parallel. What is their equivalent capacitance?
a) 4 μF
b) 6 μF
c) 12 μF
d) 18 μF
* A wave has a speed of 300 m/s and a frequency of 100 Hz. What is its wavelength?
a) 2 m
b) 3 m
c) 4 m
d) 5 m
* What is the heat energy required to raise the temperature of 200 g of water from 20°C to 50°C?
(Specific heat capacity of water = 4.2 J/g°C)
a) 12600 J
b) 25200 J
c) 8400 J
d) 5040 J
* A car starts from rest and reaches a speed of 40 m/s over a distance of 200 m. What is the
acceleration?
a) 2 m/s²
b) 3 m/s²
c) 4 m/s²
d) 5 m/s²
* A converging lens has a focal length of 20 cm. If an object is placed at 40 cm, where is the image
formed?
a) 20 cm
b) 40 cm
c) -20 cm
d) -40 cm
* What is the total current in a series circuit with two resistors of 5 Ω and 10 Ω connected to a 15 V
battery?
a) 1 A
b) 2 A
c) 3 A
d) 5 A
* A transformer has 200 turns in the primary coil and 800 turns in the secondary coil. If the input
voltage is 100 V, what is the output voltage?
a) 200 V
b) 400 V
c) 500 V
d) 800 V
* What is the power consumed by a 15 Ω resistor with a current of 2 A flowing through it?
a) 30 W
b) 60 W
c) 90 W
d) 120 W
* An object falls from a height of 80 m. How long does it take to reach the ground? (Assume g = 10
m/s²)
a) 2 s
b) 3 s
c) 4 s
 d) 5 s
* What is the equivalent resistance of three resistors of 3 Ω, 6 Ω, and 9 Ω connected in parallel?
a) 1.64 Ω
b) 1.25 Ω
c) 2.14 Ω
d) 3.56 Ω
* A sound wave has a frequency of 680 Hz and a speed of 340 m/s. What is its wavelength?
a) 0.5 m
b) 1 m
c) 1.5 m
d) 2 m
* A circuit has a total resistance of 20 Ω. If a current of 2.5 A is flowing, what is the voltage of the
battery?
a) 40 V
b) 50 V
c) 60 V
d) 70 V
* A person's weight on Earth is 600 N. What is their mass? (Assume g = 10 m/s²)
a) 6 kg
b) 60 kg
c) 600 kg
d) 6000 kg
* A light ray travels from air (refractive index 1) to water (refractive index 1.33). If the angle of
incidence is 30°, what is the angle of refraction?
a) 22.0°
b) 30.0°
c) 41.8°
d) 48.0°
* A converging lens has a focal length of 10 cm. If an object is placed at a distance of 15 cm, where
is the image formed?
a) 30 cm
b) -30 cm
c) 15 cm
d) -15 cm
* What is the momentum of a 10 kg object moving at a velocity of 20 m/s?
a) 20 kg m/s
b) 50 kg m/s
c) 200 kg m/s
d) 500 kg m/s
* A battery of 12 V is connected to a circuit with a total resistance of 3 Ω. What is the current flowing
through the circuit?
a) 2 A
b) 3 A
c) 4 A
d) 6 A
* A car moving at 15 m/s accelerates at 3 m/s² for 5 seconds. What is its final velocity?
a) 20 m/s
b) 25 m/s
c) 30 m/s
d) 35 m/s
* The power of a lens is -4 D. What is its focal length?
a) 25 cm
b) -25 cm
c) 50 cm
d) -50 cm
* A block is pushed with a force of 150 N over a distance of 10 m. What is the work done?
a) 15 J
b) 150 J
c) 1500 J
d) 15000 J
* A sound wave travels at 340 m/s. How long will it take to travel 850 m?
a) 2 s
b) 2.5 s
c) 3 s
d) 3.5 s
* What is the total resistance of two resistors of 10 Ω and 20 Ω connected in series?
a) 6.67 Ω
b) 10 Ω
c) 20 Ω
d) 30 Ω
* What is the density of an object with a mass of 50 kg and a volume of 10 m³?
a) 5 kg/m³
b) 0.2 kg/m³
c) 50 kg/m³
d) 500 kg/m³
* The period of a sound wave is 0.05 s. What is its frequency?
a) 10 Hz
b) 20 Hz
c) 50 Hz
d) 100 Hz
* A car of mass 1000 kg moves with a kinetic energy of 45000 J. What is its velocity?
a) 5 m/s
b) 10 m/s
c) 15 m/s
d) 20 m/s
* What is the power consumed by an appliance with a voltage of 12 V and a resistance of 3 Ω?
a) 4 W
b) 12 W
c) 36 W
d) 48 W
* A person walks 30 m North, then turns right and walks 40 m. How far are they from the starting
point?
a) 50 m
b) 60 m
c) 70 m
d) 100 m
* A simple pendulum has a period of 2 seconds. What is its length? (Assume g = 9.8 m/s²)
a) 0.99 m
b) 1.5 m
c) 2.0 m
d) 2.5 m
* A person with hyperopia (farsightedness) needs which type of lens to correct their vision?
a) Concave lens
b) Convex lens
c) Cylindrical lens
d) Plano lens
* A body is thrown vertically upwards with a velocity of 20 m/s. What is its velocity after 1 second?
(Assume g = 10 m/s²)
a) 5 m/s
b) 10 m/s
c) 15 m/s
d) 20 m/s
* The potential energy of an object is 100 J. If its height is doubled, what is the new potential
energy?
a) 50 J
b) 100 J
c) 200 J
d) 400 J
* A simple machine has a mechanical advantage of 3. If a load of 90 N is lifted, what is the effort
required?
a) 10 N
b) 20 N
c) 30 N
d) 40 N
* What is the electric potential energy of a charge of 5 C moved through a potential difference of 20
V?
a) 4 J
b) 20 J
c) 100 J
d) 500 J
* A train starts from a station and accelerates at a rate of 2 m/s² for 15 seconds. What is the final
velocity?
a) 15 m/s
b) 20 m/s
c) 30 m/s
d) 45 m/s
* A sound wave travels at 340 m/s. A person claps and hears an echo from a wall 2 seconds later.
How far is the wall?
a) 170 m
b) 340 m
c) 680 m
d) 1360 m
* What is the total resistance of two resistors of 8 Ω and 8 Ω connected in parallel?
a) 2 Ω
b) 4 Ω
c) 8 Ω
d) 16 Ω
* What is the pressure exerted by a force of 100 N on an area of 5 m²?
a) 5 Pa
b) 10 Pa
c) 20 Pa
d) 500 Pa
* The change in momentum of an object is equal to the impulse acting on it. This is a statement of
which law?
a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) Law of Conservation of Energy
* A car moving at 20 m/s comes to a stop in 5 seconds. What is the acceleration?
a) -2 m/s²
b) -4 m/s²
c) -5 m/s²
d) -10 m/s²
* What is the wavelength of an electromagnetic wave with a frequency of 3 \times 10¹⁴ Hz? (Speed
of light = 3 \times 10⁸ m/s)
a) 100 m
b) 1000 m
c) 10⁶ m
d) 10⁻⁶ m
* A convex mirror has a focal length of 10 cm. If an object is placed at a distance of 20 cm, where is
the image formed?
a) 6.67 cm
b) -6.67 cm
c) 15 cm
d) -15 cm
* What is the average power of a person who does 500 J of work in 10 seconds?
a) 5 W
b) 50 W
c) 500 W
d) 5000 W
* The escape velocity from Earth's surface is approximately 11.2 km/s. If a projectile is launched
with a velocity of 5.6 km/s, what happens to it?
a) It escapes Earth's gravity
b) It falls back to Earth
c) It goes into a stable orbit
d) It is destroyed in the atmosphere