Virtual Class Motion Test

When you know both the speed and direction of an object’s motion, you know the

• velocity of the object

• distance traveled of the object

• speed of an object

• acceleration of an object

A car travels 150 kilometers west in 4 hours. What is its average velocity?

• 0.2667 km/h

• 37.5 km/h West

• 600 km/h

• 37.5 km/h

A roller coaster is moving at 10 m/s at the top of a hill and 22 m/s at the bottom of the hill two seconds later. What is the acceleration of the roller coaster?

• .6 m/s

• .6 m/s²

• .167m/s²

• 6 m/s²

Which of these is an example of negative acceleration?

• A plane taking flight

• A car approaching a stop sign

• A roller coaster going down a steep hill

• A bird flying in a straight line

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This graph shows the motion of a car.​

What distance has the car traveled in 10 s?

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• 30 m

• 40 m

• 50 m

• 10 m

If an object moves in the same direction and at a constant speed for 5 hours, which of the following is TRUE?

• the object decelerated during the 5 hours

• The object's speed changed during the 5 hours

• The object's velocity did not change

• The object accelerated during the 5 hours

A boat leaves the dock and travels west reaching a velocity of 5 meters/second after 2 seconds. What is its acceleration?

• 2.5 m/s²

• 10 m/s²

• 0.4 m/s

• 2.5 m/s

A car's position in relation to time is plotted on the graph. What is the car's average velocity for segment C?

• 4 m/s

• -4 m/s

• -.227

• -0.25 m/s

Diego kicks a soccer ball from the end line. His fellow students time and mark the soccer ball as it moves down the field. The graph represents the ball's progress.

Based on the graph, during what time is the soccer ball not moving?

• 1.0-2.5 s

• 2.0-3.5 s

• 3.0-4.5s

• 4.5-5.0 s

Based on the graph, which statement BEST describes the acceleration of the two objects?

• Acceleration 1 - no acceleration. Acceleration 2 - negative acceleration.

• Acceleration 1 - no acceleration. Acceleration 2 - speeds up and slows down.

• Acceleration 1 - positive acceleration. Acceleration 2 - negative acceleration.

• Acceleration 1 - constant acceleration. Acceleration 2 - varied acceleration.