Energy Work & Power

What is kinetic energy?

• Stored energy of an elastic or springlike object
• The attraction between two objects
• Energy of motion
• Stored energy

Potential Energy is...

• Stored energy of an object based on its height off of the ground
• Energy stored in molecules like our food
• Energy of motion
• Stored energy

Conservation is...

• The amount of matter in an object
• A push or a pull
• The idea that energy cannot be created or destroyed, it can only change forms
• Stored energy of an elastic or springlike object 

Gravitational Potential Energy (GPE) is defined as....

• Stored energy of an elastic or springlike object
• Stored energy
• Stored energy of an object based on its height off of the ground
• The attraction between two objects 

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

• 200 J
• 20.0J
• 100 J
• 10 J

Two factors that determine work are

• size of the force, and distance
• size of the force, and type of force
• mass, and distance

units for work are

• netwons
• joules
• meters
• seconds

work transfers

• sweat
• energy
• velocity
• effort

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-5

if you push a cart with a force of 60 N for 2 m... how much work have you done

• 120 J
• 30 J
• 120 N 
• 30 N

 Work done = Force x blank?

• a. distance
• b. acceleration
• c. velocity
• d. speed