Unit 2 Lesson 1: Potential Energy Assessment

If a car travels around a circular track and returns to its starting point, what is its displacement?

• Equal to the circumference of the track
• Equal to the diameter of the track
• Zero
• Half the circumference of the track

A ball is dropped from a height of 3 meters. If its mass is doubled, how does its potential energy change?

• It doubles
• It stays the same
• It halves
• It increases by four times

Which formula correctly represents potential energy?

• PE = m × h
• PE = m × g × h
• PE = m × g
• PE = h × g

If a person pushes against a wall with great force but the wall doesn't move, how much work is done?

• A lot of work because of the large force
• Zero work
• Small amount of work
• Work cannot be determined

A car travels 120 meters in 15 seconds. What is its speed?

• 8 m/s
• 15 m/s
• 120 m/s
• 135 m/s

In a pendulum experiment, what is typically the independent variable?

• The length of the string
• The time period
• The mass of the bob
• The air resistance

When lifting a box, where does the gravitational potential energy come from?

• The box's weight
• The work done by the person lifting
• The air resistance
• The box's volume

If a 2 kg object is lifted 5 meters (g = 10 N/kg), what is its potential energy?

• 100 J
• 50 J
• 25 J
• 10 J

What happens to the potential energy of an object as it falls?

• Increases
• Decreases
• Stays the same
• Multiplies

Which variable would be controlled in an experiment about how drop height affects bounce height?

• The drop height
• The bounce height
• The type of ball
• The surface temperature