Kinetic and Potential Energy

What is energy?

• Something that takes up space.

• The ability to make something move or change.

• Anything that has mass.

What is potential energy?

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

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

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

What is kinetic energy?

• The energy an object has due to its motion.

• The energy an object has due its chemical composition.

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

Kinetic energy depends on

• mass and height

• height and speed

• mass and speed

• mass and force

Potential energy depends on

• mass and height

• height and speed

• mass and speed

• height and force

If a crate is moved 10 m with a force of 50 N, how much work is done?

• 40 Joules

• 60 Joules

• 500 Joules

• 5 Joules

which point has the most potential energy

• G
• f
• b
• a

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?

• 3.2 J
• 4.2 J
• 2.0 J
• 12.8 J

A 2600 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?

• 427,500 J
• 237,500 J
• 437,500 J
• 537,500 J

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J
• 63982.3 J
• 43962.4 J
• 83942.4 J