Simple Machines and Work Vocabulary Quiz

Tools that reduce the amount of input force needed, or they change the direction of the input force.

• simple machines

• electric motors

• compound machines

• complex machine

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Force exerted on an object that causes it to move.

Force X distance=

• mass

• results

• energy

• work

The force exerted on a machine to do work.

• output force

• work

• input force

• load

The force applied by the machine to overcome resistance , results of the input force.

• input force

• effort

• output force

• energy

The percentage of the input work that is converted to output work.

• friction

• joule

• efficiency

• work

The SI unit for how much work is done.

• ounce

• joule

• grams

• kilos

How much a tool or machine strengthens or multiples the input force.

• mechanical advantage

• output force

• input force

• efficiency

Tool used to measure force

• spring scale

• inclined plane

• triple beam balance

• lever

A simple machine that consists of a bar that pivots at a fixed point called a fulcrum.

• inclined plane

• lever

• pulley

• wedge

A force caused by two objects rubbing together.

• energy

• resistance

• friction

• magnetism