Simple Machine

___ is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.

• Lever
• Pulley
• Screw
• Wedge

What is force?

• simple machines
• motion
• a push or pull
• friction 

What does friction do to an object?

• it helps it move
• it slows it down 
• it make the object go faster
• it pushes it

_____ is the ability to do work.

• Work
• Energy
• Simple Machines

What is a slanting surface connecting a lower level to a higher level?

• lever
• pulley
• inclined plane
• wedge

Which answer lists only simple machines?

• television, computers, lever
• screw, car, tires
• lawn mower, edger, leaf blower
• lever, screw, wheel

Bob and his dad are building a tree house. Which machine will help them lift the materials up into the tree?

• Lever
• Pulley
• Wheel
• Screw

A pulley would be used to

• cut paper
• lift an object
• split a log
• hold objects together

A falling leaf, a dropped ball, and water dropping from a faucet are all examples of the effect of what type of force?

• weight
• mass
• gravity
• push

A seesaw on a playground is an example of what type of simple machine?

• Lever
• Screw
• Wheel and axel
• Pulley