Kinematics of UCM

Kinematics of UCM

Multiple Choice

Is it possible for an object moving with a constant speed to accelerate? Explain

• No, if the speed is constant then the acceleration is equal to zero.

• No, an object can accelerate only if there is a net force acting on it.

• Yes, although the speed is constant, the direction of the velocity can be changing.

• Yes, if an object is moving it can experience acceleration.

Multiple Choice

An object moves in a circular path at a constant speed. Compare the direction of the object's velocity and acceleration vectors.

• Both vectors point in the same direction

• The vectors point in opposite directions

• The vectors are perpendicular

Multiple Choice

What type of acceleration does an object moving with constant speed in a circular path experience?

• free fall

• constant acceleration

• linear acceleration

• centripetal acceleration

Multiple Choice

Consider a particle moving with constant speed such that its acceleration of constant magnitude is always perpendicular to its velocity.

• It is moving in a straight line

• It is moving in a circle

• It is moving in a parabola