A simple machine is a device that helps to reduce the amount of _____ required to work.

• force
• energy
• work

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

____ is done when a force is applied over a distance.

• energy
• work
• force

Which of the following does a simple machine do?

• reduce the amount of work needed to do work
• reduce the amount of force needed to do work
• Both of the above

Consists of two or more simple machines.

• multiple machine
• compound machine
• duplex machine

A _____ is a fixed bar  that us free to move around a fixed point known as a fulcrum.

• pulley
• inclined plane
• lever

A ______ is a grooved wheel with a rope running along the groove.

• lever
• pulley
• screw

A sloping force, like a ramp, that reduces the mount of force required to lift an object.

• screw
• wheel and axle
• inclined plane

Tags

NGSS.MS-PS2-2

Consists of two circular objects; a central shaft (axle) and a wheel.

• wheel and axle
• screw
• pulley

Which of the following is NOT an example of a compound machine?

• bicycle
• stairs
• lawn mower

Flagpole

• wedge
• pulley
• incline plane
• wheel and axle

Tags

NGSS.MS-ETS1-1