More simple machines

The lever, inclined plane, wedge, screw, wheel & axle, and pulley are six kinds of _

• simple machines

• complex machines

Which kind of simple machine needs a fulcrum?

• lever

• screw

• inclined plane

• wedge

Which other kind of simple machine is a special kind of lever?

• wedge

• pulley

• screw

• wheel and axle

Which other kind of simple machine is a special kind of inclined plane?

• wheel and axle

• screw

• pulley

• wedge

_ are wheels with jagged edges like teeth.

• screws

• wedges

• simple machines

• gears

Suppose you needed to move a load sideways and upward. Which simple machine would you use?

• wedge

• pulley

• screw

• wheel and axle

Tags

NGSS.MS-PS2-2

Simple machines are machines with few or _ moving parts.

• no

• many

The middle of the seesaw has something under it to hold it up. This is called the _.

A ramp is an _ that helps move objects.

• inclined plane

• airplane

• axle

A _ is a simple machine that is used to push two objects apart.

• wedge

• wheel

• screw