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Unit 6 Momentum Test

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Question 1
1.

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. Calculate the time it takes for the force of impulse on the ball.

Question 2
2.

The total momentum before a collision is _________ the total momentum after a collision.

Question 3
3.

In an explosion, momentum is NOT conserved.

Question 4
4.

Which has more momentum: a car stopped at a red light or a bike moving at 5 m/s?

Question 5
5.

Determine the momentum of 1000-kg car moving southward at 20 m/s.

Question 6
6.

In any collision (crash) the ______ is ALWAYS constant

Question 7
7.

When the speed of an object is doubled, its momentum

Question 8
8.

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

Question 9
9.

Which of the following has the least momentum?

Question 10
10.

Impulse, FΔt is best related to which of the following?

Question 11
11.

A 4 kg object has a momentum of 16 kg•m/s. The object's speed is ___ m/s.

Question 12
12.
This is an example of an __________
Question 13
13.
This is an example of an __________

Question 14
14.
This is an example of an __________

Question 15
15.

Identify what is wrong with the data collected.

Question 16
16.

Identify the velocities that you would label as negative when calculating elastic collisions.

Question 17
17.
The two carts are moving towards each other and collide. They bounce off of each other and move in opposite directions. Each car is carrying 0.300 kg of additional mass. This is an example of ​ an ______________________. In order to decrease the velocity of the blue car, ​______________ could be added to the red car.
Other Answer Choices:
more mass
explosion
inelastic collision
less mass
elastic collision
Question 18
18.
Jumping on a trampoline, ________________________ of impact and ________________________ felt by the jumper.
Other Answer Choices:
increases the force
increases the time
keeps time constant
decreases the time
force remains constant
decreases the force
Question 19
19.

Identify the mathematical relationship between Force and time.

Question 20
20.

You are asked to complete a calculation using the following formula. Identify the type of collision.