Pulley

Let's say you wanted to use a pulley to lift a flag up a flagpole. If you wanted to lift the flag 10 meters in the air, how far would you have to move the rope?

• 5 meters

• 10 meters

• 15 meters

• 20 meters

Tags

NGSS.MS-ETS1-1

A pulley contain a rope and a wheel. It helps us to move thing easier.

Which picture below shows a pulley?

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A pulley contains which other simple machine?

• a screw

• an inclined plane

• a lever

• a wheel and axle

What must a pulley have

• a rope

• chain

• string

• all the above

A_____________ pulley moves up with the load as the load is lifted.

• fixed

• moveable

What is a Pulley?

• Pulley is a tyre-shaped wheel which is attached to cars just like tyres

• A Pulley is a simple machine used to lift heavy loads. It is attached to a rod.

• None of the Above

A pulley is a _______ that consists of a rope and grooved wheel.

• Thread

• Chain

• Simple Machine

• None of the Above

What is the benefit of a movable pulley?

• It increases the weight of the load because the pulley has some weight

• It is the same as a fixed pulley, it just has two or more pullies

• It reduces the pressure needed because of multiple pullies multiply the force and therefore less force is needed

• None of the Above

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What simple machine does a pulley use?

• Axle

• Inclined Plane

• Wheel

• None of the Above

A pulley is a ___ with a groove that runs around it.

• force

• wheel

• machine

• None of the Above

Tags

NGSS.MS-PS2-2