Show:
Work
Power
Simple Machines
Energy
100

What is the formula for work?

Work = Force x Distance 

W = F x D

100
Define Power

The rate of doing work

100

What type of simple machine can be used to prop open a door?

Wedge

100

Define energy

The ability to do work

200

What is the SI unit for work?

Joule

200

What is the SI Unit for Power?

Watt (W)

200

What simple machine can be found on the bottom of a shopping cart that makes movement easier?

Wheel and axle

200

What are 2 forms of energy?

Kinetic, Potential and/or Energy Fields 
300
Define Work

Work is the product of force and distance

300

What is the formula for power?

Power = work/time

P= w/t

300

What type of simple machine can be used to make going uphill easier?

Inclined plane

300

The energy of motion is...

Kinetic Energy

400

Fill in the blank: 


if all of the force acts in the ________ direction as the motion, all of the force does work. 

SAME

400
1 horsepower is equal to how many watts?

746 watts

400

What type of simple machine helps keep the lid on your water bottle?

Screw

400
Energy that is stored based on an object's position or shape

Potential energy

500

Solve this problem: 


Bob (80 kg) uses 180 N of force to get him up the slope. The vertical distance is 2 m and the diagonal is 10 m. Calculate the work he does.

1800 J

500

Solve this problem: 


Ian and Steve ski down the 75 m slope in 80 seconds using 400 N of penguin force. Calculate their penguin power!

375 W

500

What type of simple machine is used in a teeter totter?

Lever

500

What are the two types of potential energy

Elastic and Gravitational