Simple Machines Assessment

A stiff bar that rests on a support called a fulcrum

• lever

• inclined plane

• wheel & axle

• screw

A slanting surface connecting a lower level to a higher level

• lever

• inclined plane

• wheel & axle

• pulley

A wheel with a rod through its center; both parts move together

• inclined plane

• wheel & axle

• wedge

• screw

An inclined plane wrapped around a pole

• screw

• lever

• pulley

• wedge

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

A grooved wheel with a rope or a cable around it

• lever

• screw

• pulley

• wedge

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

An object with at least one slanting side ending in a sharp edge

• wedge

• hammer

• screw

• pulley

Levers can have different shapes

• True

• False

A wedge causes effort to change direction

• True

• False

The two parts of a screw are the rotor and the threads

• False

• True

The shorter the inclined plane, the less effort is needed to move the load

• False

• True