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- 1. Multiple-choice2 minutes1 ptA biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?25 m/s375 m/s25 kg m/s375 kg m/s
- 2. Multiple-choice1 minute1 ptWhich takes more force to catch, a bowling ball or a ping pong ball?bowling ball because it has more momentumping pong ball because it has more momentumboth require the same amount of force when catchingbowling ball because it has less momentum
- 3. Multiple-choice2 minutes1 ptA runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?6030 kg0.0134 kg74.4 kg80 kg
- 4. Multiple-choice1 minute1 pt
A 5 N force is applied to a 3 kg ball to slow it down from 9 m/s to 3 m/s. What is the impulse on the ball?
-2.5 Nâ‹…s
-10 Nâ‹…s
-18 Nâ‹…s
-45 Nâ‹…s
- 5. Multiple-choice30 seconds1 ptAn object with a mass of 2000 kg at rest has what momentum?2000 kg m/sec0 kg m/sec2000 kg2000 m/sec
- 6. Multiple-choice1 minute1 ptWhen the speed of an object is doubled, its momentumremains unchanged in accord with the conservation of momentum.doublesquadruplesdecreases
- 7. Multiple-choice30 seconds1 pt
A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s. Calculate the impulse on the ball.
1 Nâ‹…s
6 Nâ‹…s
33.3 Nâ‹…s
- 8. Multiple-choice30 seconds1 ptHow can a tennis ball and a bowling ball have the same momentum?have the same speedhave different speedsone is moving backwardsthey can't
- 9. Multiple-choice30 seconds1 pt
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball.55 kg*m/s100 kg*m/s250 kg*m/s500 kg*m/s - 10. Multiple-choice1 minute1 pt
The units for Impulse are
kg
N
m/s
