Physics Review

Physics Review

Multiple Choice

Which of these best represents potential energy?

• a marble rolling on flat ground
• water flowing through a pipe
• a spring pressed between two blocks
• wind moving the blades of a windmill

a spring pressed between two blocks

While the spring has the potential to move being pressed between two blocks prevents that movement.

Multiple Choice

A ball is tossed up in the air. At its peak, it stops before beginning to fall. The ball at its peak has

• kinetic energy only.
• potential energy only.
• both kinetic and potential energy.
• neither kinetic or potential energy.

potential energy only.

When the ball is stopped at the top there is only potential energy.

Multiple Choice

A book falls from a desk. Which  BEST describes the book’s change in potential energy?

• The potential energy is increased so the total amount of energy is increased
• The potential energy is decreased so the total energy is decreased
• The potential energy is increased so the total is decreased
• Potential energy will change to kinetic energy, but the total energy remains constant

Potential energy will change to kinetic energy, but the total energy remains constant

Multiple Choice

Three rocks are each taken to the top of the same cliff in different ways. Rock A is lifted straight up to the top of the cliff. Rock B is rolled up a ramp to the top of the cliff. Rock C is carried up steps to the top of the cliff. Once at the top, which rock will have the greatest amount of potential energy?

• Rock A
• Rock B
• Rock C
• All three rocks have the same amount of potential energy

All three rocks have the same amount of potential energy

Multiple Choice

Potential or Kinetic? The spinning of a bicycle wheel.

• Potential

• Kinetic

Kinetic Energy

The bike wheels are spinning so the energy is in motion.

Multiple Choice

A cup is sitting on a table. Which would increase the cup's potential energy?

• Knocking it off the table

• Moving it to the edge of the table

• Turning it over

• Lifting it higher

Lifting it higher

The higher an object is, the greater the amount of potential energy.

Multiple Choice

As height increases so does the amount of

• Kinetic Energy

• Potential Energy

Potential

The higher up an object is, the more potential energy it has.

Multiple Choice

As height increases so does the amount of

• Kinetic Energy

• Potential Energy

It rises to a higher altitude

The higher an object is, the greater the potential energy

Multiple Choice

Potential energy and kinetic energy are similar in that both

• are demonstrated when an object is at rest.

• can each be converted into the other form.

• depend on the height of an object above the ground.

• will produce an increase in the mass of an object.

Graphing motion and speed calculations

Multiple Choice

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Not moving

Multiple Choice

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Constant Speed

Multiple Choice

What happens to the runner at 1-3 seconds?

• The runner slowed down

• The runner stopped

• The runner sped up

Between 1-3 seconds the runner stopped

The distance stays the same and the line is flat

Multiple Choice

What happens between 2 and 4 seconds?

• The runner stopped

• The runner went away from start

• The runner went back to start

The runner went back to start

Multiple Choice

In the graph, which runner is the fastest?

• Red

• Blue

The runner in red is the fastest

The steeper the line the faster they are moving

Multiple Choice

Mr. Rudman speed walked 2 miles in 10 minutes, what is his speed?

• 0.2 miles/min
• 2 miles/min
• 20 miles/min
• 40 miles/min

0.2 miles/min

Multiple Choice

Marlon decided to visit Dallas, which is 210 miles away from Houston. His trip took him 3 hours to complete. Calculate his average speed. 

• 60 mph
• 64 mph
• 70 mph
• 3 mph

Multiple Choice

What is the equation to calculate speed?

• speed = distance/time
• speed = time/distance
• speed = time x distance 
• speed = speed/time