Simple Machines

______ ________ are devices that make work easier.

• Helpful machines

• Quick machines

• Complex machines

• Simple machines

Tags

NGSS.MS-PS2-1

How do simple machines make work easier?

• By increasing the force required by increasing the distance over which the work is done.

• By decreasing the force required by increasing the distance over which the work is done.

• By decreasing the force required by decreasing the distance over which the work is done.

• By increasing the force required by decreasing the distance over which the work is done.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What simple machine is made up of two circular or cylindrical objects that rotate at the same speed?

• Incline plane

• Pulley

• Wheel and axle

• Screw

Tags

NGSS.MS-PS2-1

A pulley is a bar, rod or beam that is free to pivot on a fixed point called the fulcrum.

• True

• False; lever

• False; wheel and axle

• False; screw

A fixed point in which a bar, rod, or beam is free to pivot on is called what?

• A fulcrum

• A load

• An effort

• A wheel

A _____ is used to separate two objects or an object into two parts.

• Pulley

• Wheel and Axle

• Wedge

• Screw

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What kind of simple machine is an inclined plane wrapped around a cylinder?

• Screw

• Wheel and axle

• Wedge

• Pulley

A pulley is a wheel wrapped with a rope, chain, cable, cord, or belt.

• True

• False; wheel and axle

• False; lever

• False; wedge

Tags

NGSS.MS-PS2-1

A flat, slanted surface is called :

• a screw

• a wheel and axle

• a pulley

• an inclined plane

Tags

NGSS.MS-PS2-4

Work is done when a force is exerted on an object and it moves a distance.

• True

• False

Tags

NGSS.MS-PS3-5