Scribd
Upload
24 views2 pages

STD 8

This document is a model exam for Standard VIII Science, consisting of multiple-choice questions, fill-in-the-blanks, matching, and open-ended questions. It covers various topics such as electric current, temperature, pressure, and properties of mirrors. The exam is structured to assess students' understanding of fundamental scientific concepts and their applications.

Uploaded by

sreedharan p
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
24 views2 pages

STD 8

This document is a model exam for Standard VIII Science, consisting of multiple-choice questions, fill-in-the-blanks, matching, and open-ended questions. It covers various topics such as electric current, temperature, pressure, and properties of mirrors. The exam is structured to assess students' understanding of fundamental scientific concepts and their applications.

Uploaded by

sreedharan p
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

THUVARAGA COLLEGE OF EDUCATION

GOVERNMENT HR. SEC. SCHOOL


KRP DAM

Model exam
Science
Standard-VIII Marks: 50
Time: 1.30 hrs

I. Choose the correct answer: 10x1=8


1. Electric current is a _________ quantity
a) Base b) Supplementary c) derived d) professional
2. SI unit of temperature is ___________
a) Celsius b) Kelvin c) Fahrenheit d) ampere
3. Luminous intensity is the intensity of__________
a) Laser light b) UV light c) Visible light d) IR light
4. Unit of pressure is __________
a) Pascal b) Nm-2 c) Poise d) Both a & b
5. Pascal law is used in ___________
a) Hydraulic lift b) brake system
c) pressing heavy bundles d) all the above
6. The unit of viscosity is _________
a) Nm-2 b) Poise c) kgms-1 d) no unit
7. Which of the following has curved reflecting surface?
a) Plane mirrors b) Spherical mirrors c) simple mirrors
d) none of the above
8. The spherical mirror used as a rear view mirror in the vehicle is ________
a) concave mirror b) convex mirror c) plane mirrors
d) none of these
9. Heat is a form of ________
a) electrical energy b) gravitational energy c) thermal energy
d) none of the above
10. The process of converting a liquid into a solid is called _________
a) sublimation b) condensation c) freezing d) deposition

II. Fill in the blanks: 5x1=5


1. The intersection of two straight lines gives us ____________
2. The pressure of a liquid column ____________
3. Hydraulic lift works under the principle of ____________
4. The spherical mirror used in a beauty parlour as make-up mirror is
_______
5. A calorimeter is a device used to measure the __________

III. Match the following: 5x1=5


1. Temperature - Objects are in motion
2. Kinetic friction - solid to gas
3. Barometer - sin i/sin r = µ
4. Snell’s law - measure of hotness or coldness
5. Sublimation - atmospheric pressure

IV. Answer the following: 5x2=10


1. What is measurement?
2. What is electric current?
3. State pascals law and mention its application?
4. Give any two applications of a concave and convex mirror?
5. What are the applications of conduction in our daily life?

V. Answer the briefly: 4x5=20


1. List out the base quantities with their units.
2. Write a short note on different types of clocks.
3. What is reflection? Write a short note on regular and irregular reflection.
4. What is dispersion? Explain in detail.

You might also like