EDWIN ALLEN HIGH SCHOOL
CLASS: 101-4
MOMENTUM WORKSHEET
SHOW ALL WORKING
1. What is momentum?
a) Write the equation used to calculate the momentum of an object
b) State the principle of conservation of linear momentum
(5 marks)
2. How much momentum does a 3500 kg truck have when traveling 2.36 m/s?
(2 marks)
3. If the momentum of a 165.3 kg speed skater is 2475.0 kg m/s, how fast is she traveling?
(2 marks)
4. Two rail freight cars are being hitched together. The first car has a mass of 15,750 kg and is
moving at a speed of 4.00 m/s toward the second car. The second car is stationary and has a
mass of 19,250 kg. Calculate the final velocity of the two hitched cars.
(5 marks)
5. Jimmy disobeys his mother’s stern orders and plays with a BB gun in the house. The gun
accidentally goes off and sends a BB hurling across the room. If the 0.00100 kg projectile
traveling at a speed of 89.3 m/s lodges in a 0.203 kg block of cheese on a frictionless table,
how fast would the BB/Cheese combo slide across the table?
(5 marks)
6. Running back, Tiki Barber breaks away from the line. It appears that he will easily score.
His brother Ronde, at 85 kg Ronde runs him down and tackles him. Tiki, at 95 kg was
running 4.1 m/s when tackled by Ronde, who was running 5.5 m/s. If momentum was
conserved, what was their speed, as they collectively fell to the ground?
(5 marks)
7. Two 0.123 kg pool balls came off the bunkers headed directly at each other. The one ball
had a speed of 4.7 m/s, the fifteen ball was rolling with a speed of 0.014 m/s. After the balls
collide, the one ball continues to roll in the same direction that it was originally rolling in, but
with a speed of 1.2 m/s. What would be the new speed of the fifteen ball?
(5 marks)
8. A pair of bumper cars collide as one approaches the other directly form the rear. One has a
mass of 450kg and the other 550 kg. The lighter car approaches at 4.50 m/s and the other is
moving 3.70 m/s. If the heavier car is propelled forward with a velocity of 4.83 m/s,
calculate:
a) the velocity of the lighter car.
b) the change in momentum of each.
(5 marks)
INSTRUCTION: Which of the following statements are true or false about
MOMENTUM? GIVE REASON/S FOR YOUR ANSWER.
9. An object with mass will have momentum.
10. The standard unit on momentum is the Joule.
11. An object can be traveling eastward and slowing down; its momentum is westward.
12. An object which is moving at a constant speed has momentum.
13. The momentum of an object varies directly with the speed of the object.
14. Two objects of different mass are moving at the same speed; the more massive object will
have the greatest momentum.
15. A less massive object can never have more momentum than a more massive object.
16. An object with a changing speed will have a changing momentum.
(2 marks EACH)
(Total 50 marks)