Gravity and Kinetic Energy Quiz

What is the force that pulls objects towards the center of the Earth called?

• gravity

• friction

• repulsion

• magnetism

When an object falls freely under the influence of gravity, what is it called?

• Gravity fall

• Free fall

• Open fall

• Unrestricted fall

Which of the following is an example of potential energy?

• A moving car going 30 mph

• A burning candle losing 3 grams per hour

• Holding a marble on the top of a ramp

• Leaving the marble on the ground

What is the formula to calculate kinetic energy?

• KE = 1/2 * m * v

• KE = m * v^2

• KE = 1/2 * m * v^2

• KE = m * v

If an object is at rest, what is its kinetic energy?

• 0

• 10

• 1

• 100

Which of the following factors affect the gravitational force between two objects?

• Mass and distance

• Density and velocity

• Temperature and pressure

• Color and shape

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

• It decreases

• It remains constant

• It increases

• It fluctuates randomly

Which of the following is an example of kinetic energy?

• A moving car

• A book on a shelf

• A sleeping cat

• A stationary rock

What is the formula to calculate potential energy?

• PE = m * g * h

• PE = 1/2 * m * v^2

• PE = m * v

• PE = 1/2 * m * v

What happens to the kinetic energy of an object when it is at rest?

• It decreases

• It remains constant

• It increases

• It becomes zero