What is the fixed point around which a lever is free to turn?

• fulcrum
• resistance
• effort
• lever

What kind of simple machine is a wheelchair ramp?

• wheel and axle
• pulley
• wedge
• inclined planes

One or two inclined planes that move when used. Thick at one end and thin at the other.

• wedge
•   screw
• wheel and axle 
• pulley

Tags

NGSS.MS-PS2-1

A wheel attached to a shaft. A doorknob is an example.

• wedge
• screw
• wheel and axle 
• pulley

Tags

NGSS.MS-ETS1-2

An inclined plane wrapped around a straight piece of metal.

• wedge
• screw
• wheel and axle
• pulley

Tags

NGSS.MS-PS2-2

Rope, chain, or belt wrapped around a wheel that changes the direction of an applied force. Movable or fixed types.

• wedge
• screw
• wheel and axle
• pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which type of simple machine is a see saw?

• Lever
• Wheel and axle
• Inclined plane
• Wedge

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

• force
• energy
• work

Tags

NGSS.MS-PS2-1

Which statement correctly explains a compound machine?

• A compound machine is made up of one or more simple machines
• A compound machine is made up of two or more simple machines.
• A screw is a type of inclined plane.
• None of the above

An object being lifted or moved is a

• load
• fulcrum
• force
• work

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-5