Ms. Westendorf's Physical Science - Home
Name: _______________________________Period: 1 2 3 4 5 6 7Momentum PracticePart A: Determine whether the following statements are true or false.T1. Momentum is not equal to the mass of an object divided by its velocity.T2. The momentum of an object can change.F3. Two objects with the same mass will always have the same momentum.F4. All moving objects don’t have momentum.T5. When an object speeds up, it gains momentum.F6. Objects with different masses can’t have the same momentum.F7. Direction does not matter when you are measuring momentum.T8. Momentum can be transferred from one object to another.F9. When objects collide, some momentum is lost.T10. A tiny bullet can have more momentum than a huge truck.Part B: Fill in the blank to complete the statement.11. A moving car has momentum. If it moves twice as fast, its momentum is TWICE as much.12. Two cars, one twice as heavy as the other, move down a hill at the same speed. Compared to the lighter car, the momentum of the heavier car is TWICE as much.Part C: Calculate the momentum for the following using the equation P = mv.ObjectMass (kg)Velocity (m/s)Momentum (kg x m/s)13. Bird0.04190.7614. Football Player100101,00015. Skier60201,20016. Bullet0.0046002.417. Frog0.91210.818. Meteorite0.11,00010019. Baseball0.14304.220. Wagon23621. Satellite3,0008,00024,000,000Part D: Solve the following problems. Show your work and include units!22. A steel ball whose mass is 2.0 kg is rolling at a rate of 2.8 m/s. What is its momentum?P =mvP = ? kg x m/sm = 2.0 kgv = 2.8 m/sP = 2.0 kg x 2.8 m/sP = 5.6 kg x m/s23. A marble is rolling at a velocity of 1.5 m/s with a momentum of 0.10 kg x m/s. What is its mass?P = mvm = ? kgv = 1.5 m/sP = 0.10 kg x m/s0.10 kg x m/s = m x 1.5 m/s 1.5 m/s 1.5 m/sm = 0.067 kg24. Suppose you are traveling in a bus at highway speed on a nice summer day and the momentum of an unlucky bug is suddenly changes as it splatters onto the front window.a. Compared to the force that acts on the bug, how much force acts on the bus? (more) (same) (less)b. Although the momentum of the bus is very large compared to the momentum of the bug, the change in momentum of the bus, compared to the change in momentum of the bug is (more) (same) (less)c. Which experiences the greater acceleration? (HINT: think of Newton’s seconds law)(bus) (both the same) (bug)d. Which, therefore, suffers the greater damage? (bus) (both the same) (the bug of course!) ................
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