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- 1. Multiple ChoiceSamuel kicks a soccer ball across a grassy field and it eventually comes to a stop. If Newton’s law of inertia is true, why did the ball stop?Newton’s law only applies to objects at rest.The mass of the ball is not great enough to have inertia.Friction with the grass applies a net force on the ball causing it to decrease its speed.Gravity slowed the ball until it came to a stop.
- 2. Multiple ChoiceOnce in orbit, the space shuttle used very little, if any, rocket power to maintain its speed despite traveling over 15,000 mph! How were NASA engineers able to do this?The space shuttle is very massive and must burn its rockets at full power to achieve this speed.The space shuttle was able to use a special coating in order to achieve its fast speed in space.Gravity provides the necessary force to keep the space shuttle traveling at a high rate of speed.The speed generated from force of rockets during liftoff is maintained throughout the flight since there is no air friction.
- 3. Multiple Choice
In the case of a car crash, the body’s inertia will continue to carry it in its initial direction. However, if the person is wearing a seatbelt, in which direction will this force act?to the rightto the leftupwarddownward - 4. Multiple ChoiceSuppose you pull Nick, who is standing on a skateboard, using a rope at a constant acceleration. Nick’s friend, who weighs the same as Nick, then gets on the skateboard too. How is the force you have to apply to the rope affected to maintain the same constant acceleration?There will be no change to the required amount of force.The amount of force required is slightly increased.The amount of force required is doubled.
The amount of force required is four-times as great. - 5. Multiple ChoiceThe data chart below indicates how carts of different mass accelerate when a constant force is applied. Using the data, determine the amount of force used in Newtons.1N2N4N8N
- 6. Multiple ChoiceJosh Hamilton crushes a home run over the center field wall. The ball is struck with a force of 20 N. How much force does the ball apply to the bat?5N10 N20 N40 N
- 7. Multiple ChoiceSuppose you launch two different model rockets using two different engines. Each engine produces a different amount of force, and you record the following acceleration data for each rocket.
What conclusion can you reach about the mass of the two rockets?The mass of the two rockets are the same.The mass of the first rocket is double the mass of the second rocket.The mass of the second rocket is double the mass of the first rocket.There is not enough information to compare the mass of the two rockets. - 8. Multiple ChoiceA tennis ball being dropped, then bouncing upward after hitting the ground is an example of:the law of inertia
the law of force and accelerationthe law of action-reaction
the law of reflection - 9. Multiple ChoiceConsider the two examples below. In which instance is more work done?Example AExample BExample A and Example B represent the same amount of work.Neither example represents any work done.
- 10. Multiple ChoiceAt what point on a roller coaster does the train have the highest potential energy?at the bottom of the first drop
at the top of the second hill
when the train first leaves the loading stationat the top of the first drop - Answer choicesTagsAnswer choicesTags