1D Kinematics Concept Review

The direction of the velocity vector is dependent upon two factors: the direction the object is moving and whether the object is speeding up or slowing down.

• True

• False

An object that is accelerating is moving fast.

• True

• False

An object that is moving rightward and speeding up has a rightward acceleration.

• True

• False

An object that is moving upwards and slowing down has a negative acceleration

• True

• False

A ball is thrown upwards, rises to its peak and eventually falls back to the original height. As the ball rises, its acceleration is upwards; as it falls, its acceleration is downwards.

• True

• False

A very massive object will free fall at the same rate of acceleration as a less massive object

• True

• False

If an object has an acceleration of 0 m/s2, then one can be sure that the object is not ___.

• moving

• changing position

• changing velocity

What is the acceleration of a car that maintains a constant velocity of 55 mi/hr for 10.0 seconds?

• 0

• 5.5 mi/hr/s

• 550 mi/hr/s

When a rock is dropped, it will accelerate downward at a rate of 9.8 m/s^2. If the same rock is thrown downward (instead of being dropped from rest), its acceleration will be ___.