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Copy of 2.) Collisions - Virtual Lab (5/28/2026)

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Poslední aktualizace about 1 month ago
2 questions

1
Otázka 1
1.
1
Otázka 2
2.

In your own words, describe what changed and how it changed.

Intro Trial Set-up

1) Click "Intro"

2) Click the “+” button to expand the momenta diagram.

3) Make sure that “Velocity” and “Kinetic Energy” and “Values” are checked.

Make sure that Elasticity is set to 100%


4) Check the box next to “More Data.” Fill out the table as it is to the right.

5) Click "Slow" and then the “Play” button.

A few moments after the balls impact, click "Pause" so you can observe changes in the data.

Hint - ignore position, as this will constantly change as the balls move.

Pay special attention to the following.

  • What do you think the little black arrow mean in the momenta diagram?

  • How did the momenta diagram change after the balls impacted?

  • What was the momentum of each ball and the total momentum before and after the collision (located in two places)?

  • What was the kinetic energy before and after the collision?

  • What was the velocity of each ball before and after the collision (located in two places)?

*KE = Kinetic Energy

*Do not change the position

Mass (kg)

Velocity (m/sec)

Before

Collision

Velocity (m/sec)

After

Collision

Momentum

(kg m/sec)

Before

Collision


Momentum

(kg m/sec)

After

Collision


KE (J)

Before

Collision


KE (J)

After

Collision


Trial 1

--------

--------

--------

--------

--------

0.75

Ball 1

1.00

1.00

1.00

--------

--------

Ball 2

0.50

-1.00

-0.50

--------

--------

Trial 2 

--------

--------

--------

--------

--------

1.25

Ball 1

1.00

0.50

0.50

--------

--------

Ball 2

1.00

-1.50

-1.00

--------

--------

Trial 3

--------

--------

--------

--------

--------

3.75

Ball 1

1.50

1.00

1.50

--------

--------

Ball 2

1.50

-2.00

-3.00

--------

--------

Trial 4

--------

--------

--------

--------

--------

7.00

Ball 1

2.00

2.00

4.00

--------

--------

Ball 2

1.50

-2.00

-3.00

--------

--------

Trial 5

--------

--------

--------

--------

--------

13.00

Ball 1

2.00

2.00

4.00

--------

--------

Ball 2

2.00

-3.00

-6.00

--------

--------

Trial 6

--------

--------

--------

--------

--------

22.50

Ball 1

2.00

3.00

6.00

--------

--------

Ball 2

3.00

-3.00

-9.00

--------

--------

Trial 1 Set-up

1) Click "Intro"

2) Click the “+” button to expand the momenta diagram.

3) Make sure that “Velocity” and “Kinetic Energy” and “Values” are checked.

Make sure that Elasticity is set to 100%


4) Check the box next to “More Data.” Fill out the table as it is to the right.

5) Click "Slow" and then the “Play” button.

A few moments after the balls impact, click "Pause" so you can observe changes in the data.

Hint - ignore position, as this will constantly change as the balls move.