Making Things Move: Levers and Linkages
🎉 a that its , or a that its arm — all ! of use called and . you will out how these , them in , and your very own . ? Let's the on the !
🦾 have used for of . are to have used to the that the — all any or !
A is a bar or rod that on a called a (say: ). When you or one end — that or is called the — the other end a (the thing you want to ). of a : the is the , you are the , and your on the other end is the . The your into on the .
💡 : — in the , on one , on the other. Say it : PEL, PEL, PEL! you know where each , you can a .
Now . A is a of or that from one to another. a of — each one the to the . In a , are at called . When you one , the through all the and makes the far end . let where and how in their .
🔗 Match each word to its correct meaning. Drag the meanings to the right words! 🔗
Pivot
Effort
Load
Linkage
Joint
When a or , they make — with and that what each does. like: Where is the ? Which way does this ? What will the ? your before you you and you . before they make! ✏️
| Object | Which part is the lever or linkage? | What does it move? |
|---|---|---|
| Scissors | Two levers joined at a pivot | Blades that cut paper |
| Seesaw | A long plank with a central pivot | A person up and down |
| Nutcracker | Two arms joined at a hinge pivot | Shells crushed by load |
| Puppet arm | Linked strips from body to hand | Hand waves when string pulls |
🗂️ Sort these steps into the correct category. Are they part of DESIGNING or MAKING your moving model? 🗂️
Draw an annotated sketch of your mechanism
Cut card strips to use as linkage rods
Decide where to place the pivot
Use a split pin to join two strips at a joint
Label the effort, pivot and load on your plan
Push and pull the lever to test if it moves correctly
your is , it is to it — that it and . Does the ? Is it for your to or ? Could be ? ( ) and make . A that does not is not a — it is that you ! 🔍
⚠️ : when using to make , the the . Ask an for if you are using a or . from the !
🧩 Put the design-and-make process in the correct order. Drag the steps into the right sequence! 🔢
- Evaluate and suggest improvements
- Test whether the mechanism moves as planned
- Gather materials and assemble your prototype
- Produce an annotated sketch showing the lever or linkage
- Identify the problem and think about your target user
✍️ Complete the sentences about levers using the word bank below. 📝
A is a bar that on a . The or you is called the . The being is called the . that are called .
🌟 Did you know? The from the , to or . Even a is a — the is the , your the , and the is the being !
Quiz time! 📝
Making Things Move: Levers and Linkages Quiz 🏆
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