Work and Energy

What is the formula for work?

• force x distance

• force / distance

• distance x time

• distance / time

A force applied through a distance

• mechanical advantage

• power

• energy

• work

Choose a situation that does NOT involve work

• A Rube Goldberg machine that cooks an egg

• Mowing the lawn

• Holding a boulder directly above your head

• Lifting a feather

A lawn mower is pushed with a horizontal force of 80 N and moves a distance of 5 m across the floor . How much work is done?

• 400 N

• 400 J

• 16 N

• 16 J

What is the SI unit for force?

• Newton

• Joule

• Watt

• Meter

What is the SI unit for work?

• Newton

• Joule

• Watt

• Meter

What is the SI unit for power?

• Newton

• Joule

• Watt

• Meter

What is the SI unit for distance?

• Newton

• Joule

• Watt

• Meter

A device that changes the force or increases the motion from work.

• mechanical advantage

• efficiency

• machine

• energy transformer

Does work with only one movement

• machine

• simple machine

• compound machine

• chain reaction machine