A ______________ is any device that helps us do work.

• lever

• machine

• gear

• pulley

Work is the result of ___________ moving an object.

• load

• fulcrum

• air

• force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

An inclined plane is a sloping surface that makes it easier to move an object _________.

• on level ground

• in a circle

• to a higher or lower place

• sideways

Tags

NGSS.MS-PS3-2

A _____________ is a type of inclined plane used to raise an object or split an object apart.

• wedge

• screw

• hammer

• wheel

Another type of simple machine -the screw- is used to apply tremendous force with very little _________.

• load

• gravity

• stability

• effort

Tags

NGSS.MS-PS2-2

The lever is simply a rigid object that pivots around a fixed point called a _____________.

• fulcrum

• pole

• gear

• plane

There are _________ different classes of levers.

• four

• six

• three

• five

The wheel and _________ is a simple machine that helps people lift heavy loads with less effort.

• pulley

• axle

• rope

• lever

Tags

NGSS.MS-ETS1-2

A ___________ is a special kind of wheel that transfers force from one part of a machine to another.

• rake

• jack

• plane

• gear

Finally, the _________________ is a simple machine made of a wheel, a post and a rope. It makes work easier by changing the direction of force.

• barrow

• pivot

• pulley

• flat plane