Levers and pulleys

CLICK ON THE WORDS THAT ARE ABOUT FORCES:

• GRAVITY.

• NON- CONTACT.

• EVAPORATION.

• UNBALANCED.

• PULL.

Tags

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Simple machines __________.

• make our work harder

• make our work last longer

• make our work easier

Tags

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If you put two or more pulleys together, i'ts even ______________ to lift the load.

• Easier

• Harder

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A screw is like a:

• ramp wrapped around a rod.

• wedge with a stick

• wheel moving up a ramp

• pulley lifting a post

Tags

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NGSS.MS-PS2-2

A flag pole has __________.

• a wheel and axle

• a pulley

• a lever

Tags

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Some examples of simple machines are __________.

• wheel and axle, a fan and levers

• levers, wheel and axle and a washing machine

• pulleys, levers and a car

• pulleys, wheel and axle and levers

3 TYPES OF SIMPLE MACHINES ARE:

• LEVERS, PULLEYS AND INCLINED PLANES.

• PULLEYS, LEVERS AND COMPUTERS.

• INCLINED PLANES, CARS AND PULLEYS.

A bike has __________.

• a wheel and axle

• a pulley

• a lever

WHICH NEEDS LEAST EFFORT TO LIFT A LOAD?

• ONE FIXED PULLEY.

• 3 CONNECTED PULLEYS.

• 5 CONNECTED PULLEYS.

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Types of simple machines: levers, inclined planes and....

• Screw

• Wedge

• Pulleys

• Load