Rosevale School
Xavier Estates Phase 4, Cagayan de Oro City
High School Department
PHYSICS 7
Third Quarter 36
Written Test 5
Name:__________________________________________________________________________________
VOM: __________________________________ Date:__________________________________________
Teacher: _______________________________ Parent’s Signature:___________________________
Class Motto: ____________________________________________________________________________
TEST 1. MULTIPLE CHOICE
Directions: Choose the best answer for each multiple choice question. Write the best answer on the line.
A. heat C. kinetic energy
For numbers 1-5, the illustration on the right B. internal energy D. temperature
shows a lady making a noodle soup using a pan
made of metal. Use this illustration to answer the ____7) The natural flow of heat is always from-
questions below: A. hot to cold
B. cold to hot
____1) How does heat C. lower temperature to higher temperature
travel through the pan? D. both A and B
A. by radiation
B. by dispersion ____8) Which of the following will likely happen
C. by convection when a hot and a cold objects are put in
D. by conduction contact with one another?
A. The hot and the cold object will become
____2) How does heat travel colder.
through the soup? B. The hot and the cold object will become
A. by radiation C. by dispersion hotter.
B. by convection D. by conduction C. The cold object will become colder while the
hot object will become hotter.
____3) In what direction does heat travel through D. The cold object will become warmer while
the the hot object will become colder.
soup?
A. from top to bottom C. both A and B ____9) How are the amount of heat transferred and
B. from bottom to top D. neither A nor B the change in temperature of water related?
A. The change in temperature is inversely
____4) Which of the following explains why the lady proportional to the heat transferred.
is able to hold the handle of the pan with her B. The amount of heat transferred is
bare hands? proportional to the change in temperature.
I. The handle is made of good insulator of C. The amount of heat transferred is inversely
heat. proportional to the temperature.
II. The handle has low thermal conductivity. D. There is no relation between the heat
III. The handle has high thermal expansion. transferred and the change in temperature
A. I and II only C. II and III only
B. I and III only D. I, II, and III ____10). In which of the following will the movement
of particles be the fastest?
A. 30 0C of water C. 70 0C of water
____5) Which of the following methods of heat 0
B. 50 C of water D. 90 0C of water
transfer is NOT taking place in the given
situation? ____11) The amount of heat required to raise the
A. conduction C. radiation temperature of a body by 1°C is called what?
B. convection D. none of them A. heat C. specific heat
B. heat capacity D. temperature
____6) Which of the following energies is
transferred _____12) At what scale do the Fahrenheit and
from one thing to another because of the Celsius scales coincide?
temperature differences between them? A. -40 0C C. 32 0F
The sound of laughter is 1
like the vaulted dome of a temple of happiness.
B. 0 0F D. 40 0F B. phase change D. thermal change
____15) Why does the temperature of the ocean
____13) Which of the following should be done NOT fluctuating as much as the
when measuring the temperature of water in temperature of sand?
a glass container? A. Water has higher heat capacity.
A. Stir the water using the thermometer to get B. The mass of the ocean is greater
the temperature faster. C. The mass of the ocean is greater.
B. Avoid letting the thermometer get in contact D. Water has low specific heat capacity.
with any side of the container.
C. Shake the thermometer vigorously before _____16 Which statement about heat is NOT true?
getting the temperature of the water. A. Heat is energy in transit.
D. Let the tip of the thermometer touch the B. Heat can be changed to another form of
glass container to get the temperature faster. energy.
C. Heat flows from one body to another due to
____14) When a solid, liquid or a gas changes from temperature difference.
one physical state to another, the change is D. Heat is substance that can be transferred
called what? from one place to another.
A. chemical change C. physical change
TEST 2. CONVERTION
Directions: Convert the following temperatures. Box your final answer. ( 2 points each)
1) 37 0C to 0F 2) 88 0F to 0C 3) 790F to K 4) 550C to K 5) 44 0C to 0F
Solution: Solution: Solution: Solution: Solution:
TEST 3. ESSAY
Directions: Answer the following briefly but substantially. You may use the back of this page. (2 points each)
1) What happens to the molecules of a substance when it gets hotter?
2) What is specific heat? What does it mean when a substance has low specific heat?
3) When energy transfer can take place without the presence of matter? Explain this type of
energy.
4) On a cold morning, why is the tile of your floor cooler than a rug or a carpet?
5) Why does convection do not occur in outer space?
The sound of laughter is 2
like the vaulted dome of a temple of happiness.
