Work Energy

Ratio of output work to input work.

• efficiency

• work

• energy

The use of force to move an object over a distance

• work

• potential energy

• kinetic energy

• mechanical energy

The unit for work & energy

• Newton

• Joule

• mass

• energy

The ability to do work or cause a change.

• Newton

• Joule

• mass

• energy

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

NGSS.HS-PS3-5

A law stating that no matter how energy is transferred or transformed, the total amount of energy never changes

• law of conservation of energy

• Newton's first law

• Newton's second law

• Newton's third law

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy of motion

• work

• potential energy

• kinetic energy

• mechanical energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The combination (sum) of kinetic and potential energy.

• work

• potential energy

• kinetic energy

• mechanical energy

What is the KE at the bottom?

• 15,000 J

• 3,750 J

• 7,500 J

• 11,250 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A kid applies a force of 60 N to a ball over 1.2 meters. How much work did he do on the ball? 

• 77 J

• 72 J 

• 0.7 J 

• 772 J 

A weightlifter lifts three 300 newton weights 1.5 meters off the ground. How much work has he done?

• 900 J 

• 450 J

• 1350 J 

• 1200 J