Acceleration Quiz

An object moving north with an initial velocity of 14 m/s accelerates 5 m/s2 for 20 seconds. What is the final velocity of the object?

114 m/s

A motion map for a motorcycle is shown. After how many seconds does the motorcycle have positive acceleration?

4

A velocity vs. time graph is shown. What is the acceleration of the object?

4 m/s2

A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this time, the train moves a distance of _____ meters.

400

A runner moves west with an initial velocity of 4 m/s. She accelerates 3 m/s2 for 30 seconds. The runner's final velocity is _____ m/s.

94

Which formula is used to find an object's acceleration?

C

The diagram shows a motion map. Which best describes the motion of the object between 1 and 4 seconds?

The object has negative acceleration and eventually stops.

The chart shows data for a moving object. Which conclusion is best supported by the information in the chart?

The object is not accelerating.

A velocity vs. time graph for an object is shown. Which parts of the graph represents the object moving at a constant, positive acceleration?

W and X

How is constant velocity indicated on a motion map?

by vectors that are all the same length

For motion maps that illustrate accelerated motion, what does a new level indicate?

change in acceleration or direction

Which characteristic does an object with a constant acceleration always have?

changing velocity

The _____ of the line on a velocity vs. time graph represents acceleration.

slope

An object moving at a constant velocity will always have a _____ .

zero acceleration