Calculating KE and PE

Kinetic and potential energy

by Ferry Cugito

Multiple Choice

The faster an object moves, the ________ kinetic energy it has. 

• more

• less

Multiple Choice

Energy due to motion is ____________ energy.

• potential

• energy

• kinetic

• friction

Multiple Choice

What are the two factors that affect kinetic energy?

• time and energy
• power and mass
• mass and speed
• time and work

Fill in the Blanks

What is the kinetic energy of a football of mass 0.1 kg moving with velocity 10 m/s?

Fill in the Blanks

What is the velocity of an object of mass 1 kg which has

200 J of k.e.?

Multiple Choice

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 Joules

• 22,584 Joules

• 15 Joules

• 45,167Joules

Multiple Choice

What would have the greatest kinetic energy?

• A car driving down a hill.
• A person running down a hill. 
• A ball rolling down a hill. 

Multiple Choice

What 2 factors affect gravitational potential energy?

• gravity and time
• distance and force
• mass and height
• power and gravity

Multiple Choice

When a pendulum swings, at which point is potential energy at its greatest

• 1
• 2
• 3
• 4

Multiple Choice

The potential energy of an object at the mountain top is ........................ the potential energy of the same object at the ground.

• more than

• equal to

• less than

• no correct answer

Multiple Choice

What is the force that is pulling a skydiver towards the Earth?

• Elastic Force

• Electrical Force

• Magnetic Force

• Gravitational Force

Multiple Choice

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Multiple Choice

The more mass an object has the greater its

• kinetic energy

• potential energy

• kinetic and potential energy

• none

Multiple Choice

Which would have the LEAST gravitational potential energy (GPE)?

• A ball sitting on the ground

• Moon viewed from the Earth

• An airplane flying 30,000 feet above the ground

• A rock sitting on top of Mt. Everest

Multiple Choice

What is potential energy?

• The energy an object has due to its atomic structure.

• The energy an object has due to its chemical composition.

• The energy an object has due to its motion.

• The energy an object has due to its position or condition.

Multiple Choice

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

Multiple Choice

if g = 10 N/kg, the potential energy gained by a

0.2 kg mass raised vertically by 4 m is

• 10 J

• 8 J

• 4 J

• 2 J

Fill in the Blanks

A boulder of mass 2 kg rolls over a cliff and reaches

the beach below with a velocity of 10 m/s. Find the height of the cliff.