Name: _____________________________________________

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**I. Exercise 1: Two Objects in a Head-On Collision **

**Question**: What happens when one object (orange) has a greater mass than the second object?

Gather data for each of the following situations. Be sure to hit "RESET" between each trial. Round each number to 2 decimal places.

Trial | Orange's Mass (m1) | Orange's Initial Velocity (u1) | Orange's Current / final velocity (v1) |
Blue's Mass (m2) | Blue's Initial Velocity (u2) | Blues 's Current / final velocity (v2) |

1 | 1 kg | 1 m/s | 1 kg | -1 m/s | ||

2 | 2 kg | 1 m/s | 1 kg | -1 m/s | ||

3 | 3 kg | 1 m/s | 1 kg | -1 m/s | ||

4 | 4 kg | 1 m/s | 1 kg | -1 m/s | ||

5 | 5 kg | 1 m/s | 1 kg | -1 m/s |

1. Based on your observations from the simulation, what happens to the blue block when you increase the mass of the orange block?

Questions: |
Trial | Orange's Mass (m1) | Orange's Initial Velocity (u1) | Orange's Current / final velocity (v1) |
Blue's Mass (m2) | Blue's Initial Velocity (u2) | Blues 's Current / final velocity (v2) |

What if you make the orange block have greater mass? | 1 | 1 kg | 1 m/s | 1 kg | 0 m/s | ||

2 | 2 kg | 1 m/s | 1 kg | 0 m/s | |||

3 | 3 kg | 1 m/s | 1 kg | 0 m/s | |||

4 | 4 kg | 1 m/s | 1 kg | 0 m/s | |||

What if the orange block has a greater velocity? | 5 | 4 kg | 2 m/s | 1 kg | 0 m/s | ||

6 | 4 kg | 3 m/s | 1 kg | 0 m/s | |||

7 | 4 kg | 4 m/s | 1 kg | 0 m/s | |||

8 | 4 kg | 5 m/s | 1 kg | 0 m/s | |||

What if the blue block has a greater mass? | 9 | 1 kg | 3 m/s | 3 kg | 0 m/s | ||

10 | 1 kg | 3 m/s | 4 kg | 0 m/s | |||

11 | 1 kg | 3 m/s | 5 kg | 0 m/s |

2. Based on your data above, how can you make the blue block's **final velocity** increase? Check all that are correct:

__ Increase the mass of the orange block

__ Change the direction of the orange block

__ Increase the initial velocity of the orange block

__ Increase the mass of the blue block

__ Decrease the velocity of the orange block

3. Click the button to change the simulator to inelastic collisions. How does this change the behavior of the blocks?

4. Design an experiment dealing with inelastic collisions.

a) What is your experimental question (Hint: Look at some of the questions in Excercise 1 & 2)

b) Gather data from the simulator and present it in a table form. (Hint: Look at the tables in Exercise 1 & 2 )

c. Answer your question.