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- 1. Multiple ChoiceThe momentum of an object depends upon the object's ___________&_____________.size and shapemass and speedmass and veloctiymass and energy
- 2. Multiple ChoiceDetermine the momentum of 1000-kg car moving northward at 20 m/s.........20000 N20000 Joules20000 Kg * m/s20000 kg * m/s north
- 3. Multiple Choice
The definition of momentum isMass in MotionThe size of an objectThe velocity of an objectA comparison between two objects - 4. Multiple ChoiceThe equation to calculate momentum isp=mvp=1/2mv2p=mghp=mg
- 5. Multiple ChoiceIn any collision (crash) the ______ is ALWAYS constantTotal Momentumtotal speedtotal VelocityEnergy
- 6. Multiple ChoiceWhat is Newton's Third Law?Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside forceForce = mass x accelerationFor every action there is an equal and opposite reaction
- 7. Multiple ChoiceA 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will the velocity of the two blobs move at?3.57 m/s3.2 m/s10.0 m/s9.0 m/s
- 8. Multiple ChoiceA 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. At what speed will the second boxcar move?18.6 m/s9.3 m/s7.5 m/s1.86 m/s
- 9. Multiple ChoiceA runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?14.4 kg1400 kg144 kg360 kg
- 10. Multiple ChoiceWhen the speed of an object is doubled, its momentumremains unchanged in accord with the conservation of momentum.doublesquadruplesdecreases
- 11. Multiple ChoiceTwo football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:2 m/s3.4 m/s4.6 m/s7.1 m/s
- 12. Multiple ChoiceAn open cart on a level surface is rolling without frictional loss through a vertical downpour of rain. As the cart rolls, an appreciable amount of rainwater accumulates in the cart. The speed of the cart willincrease because of conservation of mechanical energydecrease because of conservation of momentumdecrease because of conservation of mechanical energyremain the same because the raindrops are falling perpendicular to the direction of the cart's motion
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