Understanding Levers and Simple Machines

What were Squeaks and the narrator trying to find under the rocks?

• Fossils

• Insects

• Coins

• Jewels

What is a simple machine that looks like a slide and helps in doing work?

• Lever

• Ramp

• Pulley

• Wedge

What is the main purpose of a simple machine?

• To make work harder

• To make work easier

• To increase speed

• To reduce energy

What is the part of a lever that it balances on called?

• Support

• Base

• Fulcrum

• Pivot

How does a lever make lifting easier?

• By reducing the weight

• By using a fulcrum to lift heavy objects

• By increasing the length

• By changing the object's shape

What adjustment made lifting the second rock easier?

• Placing the fulcrum closer to the rock

• Using a longer lever

• Using a heavier fulcrum

• Pushing harder on the lever

What did Squeaks and the narrator use as a fulcrum for their lever?

• A smaller rock

• A piece of wood

• A stick

• A metal rod

What is an example of a lever that doesn't look like a seesaw?

• A pulley

• A wheelbarrow

• A hammer

• A screw

In a wheelbarrow, what acts as the fulcrum?

• The handles

• The wheel

• The legs

• The tray

Which of the following is NOT a use of levers mentioned in the video?

• Opening bottles

• Digging in gardens

• Flying a kite

• Eating food