Term 1 Revision1 (Physics)
Section A
Question 1. MCQs
Choose the correct answers.
1. The law of ______ states that energy cannot be created or destroyed.
2. The length of the path covered by a body when it moves from one place to another is called:
3. When a body falls, its total energy:
4. The quantity of matter contained in a body is its:
5. The density of a substance is mass per unit:
6. Which of the following has the maximum density?
7. When a body moves along a straight line, it is said to be in:
8. The energy possessed by a body by virtue of its position is:
9. Value of acceleration due to gravity on Earth:
10. Density of water is:
11. The form of energy that creates sensation of hearing is:
12. 1 quintal is equal to:
13. Which type of motion does a simple pendulum show?
14. SI unit of speed:
15. Solar cells are examples of:
Question 2
I. Name the following:
a. Type of energy possessed by a swinging pendulum of a clock
b. When a body covers unequal distances in equal intervals of time
c. Type of energy produced in a nuclear reactor
d. The farthest position of the bob of a pendulum on either side
e. The ratio of density of a substance to the density of water
II. State True or False:
a. Acceleration is the distance travelled per unit time.
b. SI unit of weight is newton.
c. CGS stands for centimetre-gram-second system.
d. Weight of a body is minimum at equator and maximum at poles.
e. There is never a loss of energy during energy conversion.
III. State one main function:
a. Nuclear fission
b. Oscillatory motion
c. SI units
d. Potential energy
e. Mass
IV. Match the following:
Column A – Column B
2. Weight → mg
3. Geyser → Electrical to heat energy
4. 1 kgf → 9.8 N
5. Maglev trains → Magnetic to mechanical energy
6. Kinetic energy → Objects in motion
7. Random motion → Movement of clouds
8. 6000 kg/m³ → 6 g/cm³
10. Magnetic energy → Electric bell
