Test Your Knowledge

This is a test of your
knowledge. You’ll find the answers at the end of the quiz.

1. Newton's laws are valid in --- frame of
reference.

2. --- force is a pull on the body towards the centre of the circle.

3. Circular motion is a special case of ---- motion.

4. In a uniform circular motion --- is constant.

5. Centrifugal force means ---- force

6. Centre seeking force is called ---

7. If the string of Whirling stone is cut, the stone moves in ---- direction.

8. Satellite communications use --- waves

9. Centripetal acceleration, a = ----

10. The angle subtended by an arc of unit length on a circle of unit radius is called ---

11. In SHM, the acceleration of the particle is directly proportional to ---

12. A body executing oscillatory motion comes to rest at ----

13. Periodic motion is also called as ---

14. If a particle in periodic motion moves back and forth over the same path, its motion is called ----.

2. --- force is a pull on the body towards the centre of the circle.

3. Circular motion is a special case of ---- motion.

4. In a uniform circular motion --- is constant.

5. Centrifugal force means ---- force

6. Centre seeking force is called ---

7. If the string of Whirling stone is cut, the stone moves in ---- direction.

8. Satellite communications use --- waves

9. Centripetal acceleration, a = ----

10. The angle subtended by an arc of unit length on a circle of unit radius is called ---

11. In SHM, the acceleration of the particle is directly proportional to ---

12. A body executing oscillatory motion comes to rest at ----

13. Periodic motion is also called as ---

14. If a particle in periodic motion moves back and forth over the same path, its motion is called ----.

**Answers:**

1) inertial

2)
Centripetal

3)
Rotatory

4) Angular
Velocity

5) Fictitious

6) Centripetal force

6) Centripetal force

7) Straight line or
tangential to the circle

8) Microwaves

9) a = v2/r

10) a radian

10) a radian

11) Its
displacement

12) The equilibrium
position

13) Harmonic motion

13) Harmonic motion

14) Oscillatory or
Vibratory motion.