Comparison of Uniform Circular Motion and Uniform Linear Motion

Q.

What are the differences between linear motion and circular motion?

Q.

In uniform circular motion, acceleration is zero.

1. 
   True

2. 
   False

Q.

How will you decide whether a body is in uniform acceleration or non-uniform acceleration?

Q.

Will angular acceleration remain constant in uniform circular motion?

Q. What is linear and angular acceleration?

Q.

Is acceleration zero in uniform circular motion?

Q.

Uniform linear motion is motion with a constant velocity (zero acceleration). Uniform circular motion is motion with___.

1. constant speed and varying centripetal acceleration

2. speed and centripetal acceleration is zero

3. varying speed and constant centripetal acceleration

4. constant speed and constant centripetal acceleration

Q.

If the speed of an object moving along a straight line keeps changing, its motion is said to be

1. Uniform

2. Non-uniform

3. Circular

4. None of these

Q.

In a uniform linear motion, ___

1. the direction of the body does change or in other words, the body moves in a straight path

2. the direction of the body does not change or in other words, the body moves in a circular path

3. the direction of the body does change or in other words, the body moves in a straight line

4. the direction of the body does not change or in other words the body moves in a straight line

Q.

The basic difference between uniform linear motion & uniform circular motion is

1. Uniform linear motion is along the radius and uniform circular motion is along the tangent

2. Uniform linear motion is along the tangent and uniform circular motion is along the radius

3. Uniform linear motion is non- accelerated motion and uniform circular motion is accelerated motion

4. Uniform linear motion is along the radius inwards and uniform circular motion is along the radius outwards

5. Uniform linear motion is accelerated motion and uniform circular motion is non- accelerated motion

Q.

In a non-uniform motion, the velocity of a body changes with time.

1. True
2. False

Q.

According to Newton’s first law of motion, there can be no acceleration without a net force. So there has to be___

1. a tangential force associated with the circular motion

2. a vertical force associated with the circular motion

3. a force associated with the uniform circular motion and is directed towards the centre

4. a force associated with the translational motion and is directed towards the centre

Q. . What do you mean by uniform circular motion? Derive an expression for acceleration of an
object in uniform circular motion.

Q.

A uniform meter scale of weight $W$ is kept in equilibrium when supported at the $60cm$ mark and a mass m of weight w is suspended at $90cm$ mark as shown in the figure. Which of the following is true?

1. $W$ < w

2. $W$ > w

3. Data insufficient

4. $W$ = w

Q. Which of these represents a body doing accelerated motion at uniform speed?

1. Circular
2. Linear
3. Parabolic
4. Irregular

Q. Direction of force of tension by rope is __.

1. outward
2. inward
3. diagonal
4. arbitrary

Q. The centripetal force acting on a particle moving in a circular in a path depends on mass (m), velocity (v), and radius (r), of circular path. Derive its formula.

Q. Q: a particle is going in a spiral path with constant speed
a) The velocity of the particle is constant
b) The acceleration of the particle is constant
c) The magnitude of acceleration is constant.
c) The magnitude of acceleration s decreasing continuously.