Ms. Brown's Science Class Uses a Toy Car Race to Study and Collect Data About Forces and Motion

The total distance traveled divided by the total time taken to travel the distance is___?

• Average speed

• Mass

• Velocity

• Acceleration

When you graph the motion of an object, you put _____ on the horizontal axis and _____ on the vertical axis.

• Time, Distance

• Distance,Time

• Speed, Time

• Time, Speed

When a car slows down at a traffic light, it is _____

• Accelerating

• decreasing its displacement

• traveling at constant Velocity

• changing direction

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To discribe velocity you need to know _____?

• speed & direction

• speed & time

• direction & acceleration

• speed & acceleration

Acceleration is a change in ____

• speed

• velocity

• direction

• position

Which of the following best describes how constant velocity is shown in a speed time graph?

• line curving down

• a straight horizontal line

• a line curving up

• a straight diagonal line

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which describes how velocity changes with time?

• acceleration

• average speed

• gravity

• inertia

During which time interval was the object moving fastest?

​

• 0s to 1s

• 2s to 3s

• 1s to 2s

• 3s to 4s

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According to the graph, about how long did the object take to move 40m?

• 4s

• 2s

• 3s

• 5s

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11. You travel 200 km in 2 h. Your ____ speed is 100 km/h.

• Constant

• Instantaneous

• Average

• Initial