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Biblioteka

PheT Friction

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Posljednje ažuriranje about 2 years ago
11

Make sure you keep the Friction simulation open while you are working on these questions!

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Friction Experiment 1

Place a 50 Kg box on the ground, check all the boxes and answer the questions

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Friction Experiment 2

Place another 50 Kg box on top of the first box, check all the boxes and answer the questions

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Friction Experiment 3

Add one box to the ground, check all the boxes. Answer the question below

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Reflect on what you learned

Use complete sentences to answer these questions.

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Pitanje 1
1.

Use a complete sentence to explain how FRICTION affects how far the different objects moved.

Pitanje 2
2.

Reset the simulation by clicking the orange arrow and then add an object, start pushing on the object but don't make it move.

Before the object starts to move the FRICTION force and the APPLIED force are _________

Pitanje 3
3.

Reset the simulation by clicking the orange arrow and then add an object, start pushing on the object until it starts to move

After the object starts to move the FRICTION force and the APPLIED force are _________

Pitanje 4
4.

Use a complete sentence to predict how much force it will take to move the box.

Pitanje 5
5.

Use a complete sentence to explain what the actual force that moved the box was.

Pitanje 6
6.

Use a complete sentence to predict how much force it will take to move the boxes.

Pitanje 7
7.

Use a complete sentence to explain what the actual force that moved the boxes was.

Pitanje 8
8.

What happened to the force required to move the box when you increased the friction? (Move the friction slider to the right)

Pitanje 9
9.

What happened to the force required to move the box when you decreased the friction? (Move the friction slider to the right)

Pitanje 10
10.

Friction affects how much force it takes to move an object

Pitanje 11
11.

To make an object move the forces had to be unbalanced. Compare the FRICTION force to the APPLIED force when an object is moving.