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Knihovna

Forces and Motion Interactive

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Poslední aktualizace 5 months ago
33 Dotazy
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Finding the simulation: Navigate to the website for the Simulation by clicking here or use a search engine to find “PhET Simulation Forces and Motion Basics

Explore the computer simulation to find answers to the questions.

Net Force Section – enable measurement functions by checking boxes in top corner

Explore the program by placing red and blue figures on the rope to simulate a tug of war

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Otázka 2
2.

What is the exact measurement of force that the small figure can pull the rope?

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Otázka 3
3.

What is the exact measurement of force that the medium figure can pull the rope?

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Place 2 small blue figures on the left against 1 medium red figure on the right.

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Otázka 5
5.

What is the resulting motion or speed?

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Place 2 small blue figures on the left against 1 medium red figure on the right.

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Otázka 10
10.

What is the resulting motion or speed?

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Otázka 15
15.

What happens to the speed of the cart when one side is winning the tug of war?

Otázka 16
16.

When one side is winning the tug of war, is that type of motion considered acceleration? Why or why not?

Otázka 17
17.

What happens to the speed of the cart when the tug of war is a tie?

Otázka 18
18.

When the tug of war is a tie, is that type of motion considered acceleration? Why or why not?

Go the the Friction Section – Be sure to enable the functions at the top corner of the screen.

Set your friction bar to medium, select one 50-kg crate, and slowly apply rightward force using the single arrow button.

Stop when applied force reaches 10N

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Otázka 19
19.

What is the friction force?

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Otázka 20
20.

What is the sum of the forces?

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Otázka 21
21.

In which direction?

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Otázka 23
23.

What is the friction force?

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Otázka 24
24.

What is the sum of the forces?

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Otázka 25
25.

In which direction is the sum of the forces?

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Otázka 26
26.

Is the crate accelerating (speeding up, slowing down, or changing direction)?

Add more applied force. Stop when applied force reaches 200N

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Otázka 27
27.

What is the friction force?

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Otázka 28
28.

What is the sum of the forces?

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Otázka 29
29.

In which direction is the sum of the forces?

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Otázka 31
31.

What happens to the box when the frictional force is greater than the applied force?

Otázka 32
32.

Compare the applied force required to move a 50-kg crate and the applied force required to move something much more massive, like the 200-kg refrigerator

Otázka 33
33.

Compare the applied force required to move a 50-kg crate when there is LOTS of friction, MEDIUM friction, and NONE friction

Otázka 1
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Which figure can pull with the most force?

Otázka 4
4.

What is the exact measurement of force that the large figure can pull the rope?

Otázka 6
6.

What is the sum of the forces (net force)?

Otázka 7
7.

Use a math equation to show how the net force was calculated.

Otázka 8
8.

Are the forces balanced or unbalanced?

Otázka 9
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How do you know if the forces are balanced or unbalanced?

Otázka 11
11.

What is the sum of the forces (net force)?

Otázka 12
12.

Use a math equation to show how the net force was calculated.

Otázka 13
13.

Are the forces balanced or unbalanced?

Otázka 14
14.

How do you know if the forces are unbalanced or balanced?

Otázka 22
22.

Is the crate accelerating? (speeding up, slowing down or changing direction)

Otázka 30
30.

Is the crate accelerating (speeding up, slowing down, or changing direction)?