Download Impulse - Momentum Review Note: To earn 5 points extra credit, the

Impulse - Momentum Review
Note: To earn 5 points extra credit, the review must be 100% complete when the late bell rings on
Monday, 12/7 (A) and Tuesday, 12/8 (B).
1. I have reviewed all my notes, warm-ups, and practice problems. _____Yes
_____ No
2. Define the following words and give an example for each.
Closed system –
Open system –
Elastic collision –
Inelastic collision –
Impulse –
Momentum –
Impulse-momentum theorem 3. For each of the formula’s below, label the variables and include units for each of the variables.
P = mv
FT = MV
J = FT
m1v1 + m2v2 = m1v1 + m2v2
m1v1 + m2v2 = (m1 + m2)vf
4. How does mass affect the motion of an object?
5. A remote control car has a mass of 3 kg and is traveling at 2 m/s. Use GUESS to calculate the
car’s momentum.
6. A remote control boat is moving through the water at 6 m/s and has a momentum of 10 kg*m/s.
Use GUESS to calculate the mass of the boat.
7. A .5 kg ball is rolling on the ground and has a momentum of 20 kg*m/s. Use GUESS to calculate
the velocity of the ball.
8. A 85 kg basketball player is sitting on the bench waiting to go into the game. What is the player’s
momentum?
9. A bat applies a 100 N force to a .145 kg baseball for .25 s. Calculate the impulse.
10. Use words to describe the impulse-momentum equation. Include the actual equation (it’s one of
the equations on the board).
11. A cricket player strikes a .15 kg ball with a force of 300 N giving the ball a velocity of 90 m/s. How
long was the bat in contact with the ball?
12. T or F: Force and time are inversely proportional to each other in the impulse equation.
13. How does time to impact (time to hit the wind shield) affect the severity of the driver’s injury?
14. What is the relationship between force and time in the impulse equation?
15. Two baseball players collide with each other and bounce off each other. What type of collision has
occurred? Will they have the same velocity after the collision?
16. A car traveling 100 m/s on highway 114 rams into a car traveling 50 m/s. After the collision the
cars cannot be separated. What type of collision has occurred? Will they have the same velocity
after the collision?
17. Jamal is at Six Flags playing at the arcade. At one booth he throws a 0.50 kg ball forward with a
velocity of 21.0 m/s in order to hit a 0.20 kg bottle sitting on a shelf, and when he makes contact
the bottle goes flying forward at 30.0 m/s.
a. Draw an illustration of the collision.
b. What type of collision is this? _________________
c. Use the GUESS method to calculate the final velocity of the ball.
18. If an 800 kg sports car slows to 13.0 m/s to check out an accident scene and the 1000 kg pick-up
truck behind him continues traveling at 25.0 m/s, with what velocity will the two move if they lock
bumpers after a rear-end collision?
a. Draw an illustration of the collision.
b. What type of collision is this? _________________
c. Use the GUESS method to calculate the final velocity of the ball.