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- 1. Multiple ChoiceAn object at rest will _______ if no outside forces are applied.Stay at restIncrease VelocityDecrease Mass
- 2. Multiple ChoiceMomentum is related to Newton's first law.TrueFalse
- 3. Multiple ChoiceA greater applied force is required to move an object with a greater mass than one with a smaller mass.TrueFalse
- 4. Multiple ChoiceThe SI units for force are...KilogramsNewtonsMeters per secondPounds
- 5. Multiple ChoiceIf a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?the cannonballthe baseballThe balls land at the same time.the ball with the larger volume
- 6. Multiple ChoiceIf an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the reaction force isexerted on the tableexerted on all the other billiard balls.not presentexerted by the billiard ball on the cue ball.
- 7. Multiple ChoiceA crumpled piece of paper hits the ground before a flat sheet of paper becausethe acceleration of gravity is greater on the crumpled paper.there is more air resistance against the flat paper.the crumpled paper is more massivethe crumpled paper is less massive.
- 8. Multiple ChoiceAccording to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force willremain in motion.eventually come to a stop.change its momentum.accelerate.
- 9. Multiple ChoiceAn ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described byNewton’s first law of motion for objects at rest.Newton’s first law of motion for objects in motion.Newton’s second law of motion.Newton’s third law of motion.
- 10. Multiple ChoiceA sled sliding on a flat, icy surface with a constant velocity is best described byNewton’s first law of motion for objects at rest.Newton’s first law of motion for objects in motion.Newton’s second law of motion.Newton’s third law of motion.
- 11. Multiple ChoiceWhich of the following explains the difference between speed and velocity?One has motion, and the other does not.One has direction, and the other does not.One involves time, and the other does not.One involves acceleration, and the other does not.
- 12. Multiple ChoiceThe gravitational pull is greater between two objects thathave greater masses.have rougher surfaces.are farther apart.are moving at greater speed
- 13. Multiple ChoiceDividing the total distance traveled by the total time is how to calculateaverage speed.average velocity.average acceleration.
- 14. Multiple ChoiceA hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?His direction changed.His direction was unchanged.His speed increased.His speed decreased.
- 15. Multiple ChoiceHow does Newton’s third law explain how a rocket takes off?The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.The rocket is at rest until ignition.The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
- 16. Multiple ChoiceAcceleration is caused by a force acting on a mass.Newton’s first law of motionNewton’s second law of motionNewton’s third law of motion
- 17. Multiple ChoiceFor a force on an object there is an equal and opposite force.Newton’s first law of motionNewton’s second law of motionNewton’s third law of motion
- 18. Multiple ChoiceWithout any force to change it, an object at rest stays at rest and an object in motion stays in motionNewton’s first law of motionNewton’s second law of motionNewton’s third law of motion
- 19. Multiple ChoiceIf a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)The one with a mass of .78 kg will have the greatest acceleration.The one with a mass of .52 kg will have the greatest acceleration.They will both accelerate at the same rate.
- 20. Multiple ChoiceA greater applied force is required to move an object with a greater mass than one with a smaller mass.TrueFalse
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