Physics Kinematics Test MC

Which of the following is a vector quantity?

• velocity

• speed

• time

• distance

A car traveling at 75 km/h. In order for the car to be traveling at a constant velocity, what must be true? Check any that apply

• The car must continue in the same direction

• The car must maintain the same speed

• The car must be constantly changing speed

• The car must be constantly changing direction

What does the area under the slope of a velocity vs time graph represent?

• acceleration

• velocity

• speed

• displacement

Describe the motion of the velocity vs. time graph pictured

• zero velocity

• constant velocity

• constant acceleration

• changing acceleration

Driving a car in a circle at 35 km/h does not change ________ but does change ________.

• velocity;direction

• acceleration;speed

• direction;speed

• speed;direction

True/False: A car driving in a circle at 35 km/h is not accelerating.

• True

• False

Ignoring air resistance, if a 20 kg ball and a 400 kg crate were both dropped from the top of a building, the acceleration of the crate would be ________ the acceleration of the ball.

• greater than

• less than

• equal to

• not enough information

A ball tossed vertically rises upward, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always _______.

• directed upward

• opposite its velocity

• directed downward

• in the direction of motion

Which pair of graphs represent the same motion?

• pair 1

• pair 2

• pair 3

• pair 4

Which of the following quantities is a scalar quantity?

• velocity

• speed

• displacement

• acceleration