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- 1. Multiple ChoiceAn object at rest will _______ if no outside forces are applied.Stay at restIncrease VelocityDecrease Mass
- 2. Multiple ChoiceA greater applied force is required to move an object with a greater mass than one with a smaller mass.TrueFalse
- 3. Multiple ChoiceThe SI units for force are...KilogramsNewtonsMeters per secondPounds
- 4. 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
- 5. 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.
- 6. 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.
- 7. 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.
- 8. 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.
- 9. 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.
- 10. 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.
- 11. 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.
- 12. 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
- 13. 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
- 14. 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
- 15. 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.
- 16. Multiple ChoiceA greater applied force is required to move an object with a greater mass than one with a smaller mass.TrueFalse
- 17. Multiple ChoiceIf you double the mass of an object with the same force apply on it, the acceleration willdoublecut in halfthe samezero
- 18. Multiple ChoiceWhat kind(s) of objects have inertia?all objects with massonly objects at restonly objects in motiononly objects whose motion is being changed
- 19. Multiple ChoiceWhich one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?feathersironsamedepends on their friction
- 20. Multiple ChoiceAfter a cannonball is fired into frictionless space, the amount of force needed to keep it going equalstwice the force with which it was firedthe same amount of force with which it was fired1/2 the force with which it was firedzero, since no force is required to keep it moving.
- 21. Multiple ChoiceThe acceleration produced by a net force on an object isinversely proportional to the mass of the object.directly proportional to the magnitude of the net force.in the same direction as the net force.all of the above
- 22. Multiple ChoiceA 10-kg brick and a 1-kg book are dropped in a vacuum. The force of gravity on the 10-kg brick is
10 times as much as the force on the 1-kg bookzero.the same as the force on the 1-kg book.none of the above - 23. Multiple ChoiceA book weighs 4 N. When held at rest in your hands, the net force on the book is
0 N.0.4 N.4 N.39 N. - 24. Multiple ChoiceThe tendency of an object to stay in motion or at rest is calledvelocityaccelerationspeedinertia
- 25. Multiple ChoiceWhat is the difference between mass and weight?mass is how much matter is in an object, and weight is the gravitational pull on that objectmass and weight are the sameweight affects how much mass is in an objectweight is determined by how many atoms make up an object
- 26. Multiple Choice
What is the net force?5000 N right4000 N right40 N left4000 N left - 27. Multiple ChoiceWhen the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?Newton's Law of InertiaNewton's Law of F=maNewton's Law of Force PairsNewton's Law of Biology
- 28. Multiple ChoiceWhich law best explains how objects accelerate when a force is applied?Newton's Law of InertiaNewton's Law of F=maNewton's Law of Force PairsNewton's Law of Chemistry
- 29. Multiple ChoiceWhich law best explains why the boat moves in the opposite direction that Sally moves as she jumps to shore?Newton's Law of InertiaNewton's Law of F=maNewton's Law of Force PairsNewton's Law of Chemistry
- 30. Multiple ChoiceWhich law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball.Newton's Law of InertiaNewton's Law of F=maNewton's Law of Force PairsNewton's Law of Biology
- 31. Multiple ChoiceA man hits a 0.2 kg golf ball causing it to accelerate at rate of 20 m/s2. Calculate the force used on the golf ball.4 N100 N0.01 N20.2 N
- 32. Multiple ChoiceA force of 560 N is needed to produce an acceleration of 20 m/s2. What is the mass of the accelerated body?28 kg11200 kg0.04 kg580 kg
- 33. Multiple ChoiceA student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box?18N left18N right2N right2N left
- 34. Multiple ChoiceIf net force acting on object is 0, then the force is considered to be..BalancedUnbalancedEqual in DirectionDistance/Time
- 35. Multiple ChoiceThis equation goes with which law?Newton's first law of motionNewton's second law of motionNewton's third law of motionNone of these
- 36. Multiple ChoiceA person is pushed forward into their seat belt when a car stops. Which law is this?1st2nd2 and 33rd
- 37. Multiple ChoiceA rubbing together force that slows things down and stops them. It works against motion.accelerationmassgravityfriction
- 38. Multiple ChoiceThe force that draws all objects towards Earth.frictiongravitymassacceleration
- 39. Multiple ChoiceThere is a natural tendency of objects to ________ . All objects resist changes in their motion.keep doing what they are doinglove to stop what they're doing and changeaccelerate slowlyto do what they are told
- 40. Multiple ChoiceAccording to Newton's second law, if you increase the force applied to an object :it accelerates moreit doesn't moveyou get more inertiait decelerates
- 41. Multiple ChoiceTwo objects are connected by a rope over a pulley. According to Newton's Second Law of Motion, the masses will start to move if theacceleration of object 1 is greater than acceleration of object 2acceleration of object 2 is greater than acceleration of object 1mass of object 1 is greater than the mass of object 2mass object 2 is greater than the mass of object 1
- 42. Multiple ChoiceAs the wheels of a train push down on the track, the track pushes back against the wheels. Which of Newton's laws is used to explain these forces.An object at rest tends to stay at rest unless acted upon by an unbalanced force.The net force of an object is its mass times its acceleration.For every action, there is an equal and opposite reaction.Any 2 objects exert a gravitational force of attraction on each other.
- 43. Multiple ChoiceWhich example best explains Newton's Third Law of Motion?When a glass slid across a table, it spilled water when it stopped suddenly.An engine used less work to move a lighter car than when it moved a heavier car.When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body.
- 44. Multiple ChoiceA truck that is travelling at a constant speed is carrying some boxes. If the truck comes to a sudden stop, what will most likely happen to the boxes?They will stay in the middle of the truck.They will slide toward the front of the truck.They will slide toward the back of the truck.They will fall off the side of the truck.
- 45. Multiple ChoiceA student throws a ball against a wall. Which statement best explains what is happening in the picture.The energy of the ball is destroyed as it strikes the wall.The energy of the ball becomes negative as it hits the wall.The force from the wall on the ball is equal and opposite to the force from the ball on the wall.The force exerted by the ball on the wall is greater than the force exerted by the wall on the ball.
- 46. Multiple ChoiceObject X has twice the mass of Object Y. Both objects are accelerating at the same rate. Which statement best describes the motions of Object X and Object Y.Object X is travelling at twice the speed as Object Y.Object X is travelling at half the speed as Object Y.Object X requires twice the force to accelerate at the same rate as Object Y.Object X requires half the force to accelerate at the same rate as Object Y.
- 47. Multiple ChoiceWho invented the 3 Laws of Motion?Sir Francis BaconSir Isaac NewtonJohannes KeplerGalileo Galilei
- 48. Multiple ChoiceIf you are shooting a basketball, the basketball pushes on your hand as your hand pushes on the basketball. This is Newton's 3rd law of motion that saysfor every action there is an equal and opposite reactionan object at rest will stay at rest unless acted on by an unbalanced forceacceleration is produced when a force acts on a mass, the greater the mass, the greater the amount of force needed to accelerate the objectan object in motion will remain in motion unless acted on by an unbalanced forece
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