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Simple Machines

Hard⏱ 23 min
A wooden seesaw balancing on its pivot, a classic lever
📷 Aliva Sahoo · CC BY 4.0

A is any that makes . You a as with and , but the have no at all. The six are the , the and , the , the (), the , and the .

do not you . , they let you a used over a for a over a , or the in which you or . This makes much .

✨

A is a bar that on a called a . the how much you need. , , and are all !

An is just a . a up a than it up, you have to . are used , from to a .

A sloping wheelchair ramp, an inclined plane leading to a doorway
📷 Albert Bridge · CC BY-SA 2.0

A is like two to , and it is used to things or cut them. The of an axe, a , and even your are . A is an around a , which is why a it into .

🔗 Match each simple machine to an everyday example.

  • Lever

  • Inclined plane

  • Pulley

  • Wedge

A and is a to a rod called an , so they . This and . Car , and all use this .

A round door knob, an example of a wheel and axle
📷 Aimelaime at French Wikipedia · Public domain
💡

All for : you use , but you have to things over a . The of you do the — there is no to !

🗂️ Sort each tool by the simple machine it uses.

  • A seesaw

  • A knife

  • A door knob

  • A pair of scissors

  • An axe

A is a with a over it. A the of your , so you can on a to a up. also the , it to very with .

A rope running over a pulley wheel to lift a heavy load
📷 Taylor 49 · CC BY-SA 4.0

🧩 Order these machines from the simplest single machine to the most complex.

  1. Engine (combines many machines)
  2. Pulley system (e.g. a crane)
  3. Lever (e.g. a crowbar)
  4. Wedge (e.g. a door stopper)

✨

The are to have used ( ) to the that the — that can things.

✍️ Fill in the simple machines words.

A bar that on a is a . A is also called an . A on a used for is a .

Quiz time! 📝

Simple Machines Quiz

Question 1 of 5

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What is the that a on called?

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