Physics Summative Assessment E1-E3 Review

Graphs can represent the motion of an object.

• True

• False

A cart slides down a track with friction, then slows to a stop. In this scenario, the cart's kinetic energy is converted into thermal energy.

• True

• False

If I hit a hockey puck as hard as I can on an endless, frictionless track it will speed up forever.

• True

• False

If I hit a hockey puck as hard as I can on an endless frictionless track it will speed up and move at a constant speed for a while, then it will eventually slow down to a stop.

• True

• False

When evaluating a velocity time graph, how can you tell if an object is stopped?

• When the line of the graph is touching the x-axis

• When the line of the graph is below the x-axis

• When the line of the graph is above the x-axis

• None of the above.

Velocity is an example of a

• scalar quantity because it includes only the magnitude of the motion.

• scalar quantity because it includes both the magnitude of the motion and the direction of motion.

• vector quantity because it includes only the magnitude of the motion.

• vector quantity because it includes both the magnitude of the motion and the direction of motion.

Which section shows the fastest constant speed?

• A

• B

• G

• D

Which of the following shows the correct shape of a Velocity vs. Time graph for a chair that is moving to the left and sliding to a stop due to friction?

• 
• 
• 

Which of the following shows the correct shape of a Velocity vs Time graph for an object at rest with a position that is 2 meters to the right of the reference point?

• 
• 
• 

Which of the Velcocity vs. Time graphs shown is the correct shape for a truck that travels to the right at a constant speed, slows down and stops, and then speeds up to a faster constant speed to the right?

• 
•