Pulley and Mechanical Advantage Quiz

What is a pulley?

• A flat surface used to slide things

• A wheel with a rope used to lift or move objects

• A sharp object used to split things apart

• A round object used to roll down hills

What common item is mentioned as using a pulley?

• A lightbulb

• A backpack

• A flagpole

• A frying pan

Why was the jellyfish food hard for Jacques to carry up the gangplank?

• It was slippery

• The gangplank was broken

• The bag was too heavy

• He forgot to tie the rope

What did Jacques do to try to lift the bag more easily?

• He got help from his crew

• He used a pulley system

• He rolled the bag up a ramp

• He built a ramp from the dock

What is the advantage of using a double pulley?

• It makes the bag lighter

• It helps Jacques balance

• It makes lifting faster

• It reduces the amount of effort needed

What does “mechanical advantage” mean in the passage?

• A trick to make machines work faster

• A way to lift more with less effort

• A machine that is very expensive

• A machine that runs by itself

Why did Jacques decide to use a second pulley?

• He wanted to test an invention

• The first pulley broke

• The bag was still too heavy

• He needed to move the boat

What almost got Eureka! canceled for good?

• The pulley broke

• The jellyfish food spilled everywhere

• Jacques used too many pulleys

• The jellyfish food idea was a big mistake

Explain in your own words how a pulley helps lift a heavy object.

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Why did Jacques use a double pulley instead of just a simple pulley?

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