Simple Machines

_______ is a push or pull that changes the shape or motion of an object.

• 
  Distance

• Machine

• Work

• Force

How does a single pulley make work easier?

• by changing the direction

• by requiring more force over a shorter distance

• by requiring less force over a longer distance

• by holding objects together

Which is NOT a type of simple machine?

• lever

• wedge

• screw

• arch

An inclined plane allows you to move an object using ______________.

• the same force over the same distance

• more force over a shorter distance

• less force over a longer distance

• less force over a shorter distance

A wedge can be used to raise objects and to _____________________.

• spin objects

• split objects apart

• hold two objects together

• move an object from place to place

What type of simple machine is the screw adapted from?

• the pulley

• the arch

• the inclined plane

• the wheel and axle

The three parts of a lever are the load, the fulcrum, and the _____________.

• pitch

• block and tackle

• post

• effort

All machines help us to ___________________.

• study

• do work

• run

• climb stairs

A doorknob is an example of a ___________.

• screw

• pulley

• lever

• wheel and axle

A simple machine ___________________.

• has few or no moving parts

• does no work

• requires no force

• has many moving parts