Kinetic Energy

A moving 10 kilogram object has 20 Joules of KE. What is its velocity?

• 2 m/s

• 200 m/s

• 4 m/s

• 10 m/s

How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?

• 27 J

• 9 J

• 18 J

• 2 J

What happens to kinetic energy as height increases

• It increases

• It decreases

• It stays the same

What happens to potential energy when height increases

• It increases

• It decreases

• It stays the same

What is the mass of a moving object that has 100 Joules of KE and moves at a velocity of 2 m/s?

• 50 kg

• 25 kg

• 200 kg

• 100 kg

As mass (m) increases, kinetic energy (KE)...

• Stays the same

• Decreases

• Increases

The Potential Energy (PE) of a boulder on a hill will be ______ the Kinetic Energy (KE) of the boulder as it rolls down the hill.

• Greater than

• Less than

• The same as

The mechanical energy of a 200 kg rollercoaster cart is 15,000 J. If the potential energy is 6000 J, find the kinetic energy of the cart in order to solve for velocity after.

• v = 9.49 m/s

• v = 90 m/s

• 4.74 m/s

• Not enough information provided

Calculate potential energy, given the following information:

Mass = 80 kg, Height = 150 m

• 5.227 J

• 1,224.5 J

• 117,600 J

• 18.375 J

Would mass (m) or velocity (v) have a bigger impact on Kinetic Energy (KE)?

• Mass

• Velocity

• They would have the same impact

• Not enough information