
Force and Motion Unit Study Guide
Quiz by Cheryl McLawhorn
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20 questions
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- Q1An object travels a given distance at a speed of 5 m/s. If the object travels the same distance at a higher speed, how will the faster speed affect the time it takes the object to travel the distance?The time will remain constant.It will take more time to travel the distance.The time will not be affected.It will take less time to travel the distance.120s
- Q2Steve and Barry are racing each other, and Barry is winning. If Barry is moving faster than Steve, from which reference point is Barry's position increasing through time?an observer in front of Steve and BarrySteve's reference pointBarry's reference pointthe finish line120s
- Q3The motion of an object can be described by itsall of these.direction.position.speed.120s
- Q4The rate at which an object moves is the object's __________.accelerationspeedforcemomentum120s
- Q5A ball is dropped from a tower. From whose reference point is the ball approaching the observer?a person on the ground driving rapidly away from the tower.a person in an airplane flying above the towera person standing on the ground beneath the towera person standing on top of the tower120s
- Q6_______ can be generally defined as a change in position.ForceMotionVolumeMass120s
- Q7It is 10:00 in the morning, and Wendy is late for school. She is currently running north at a speed of 5 meters per second and is 2 miles south of her school. Which of the following best describes Wendy's current position?2 miles south of her schoolrunning northrunning at a speed of 5 meters per second10:00 in the morning120s
- Q8The motion of an object is described by the graph below. The object is moving at a _______ speed, and the forces acting on it are _______.changing; balancedconstant; unbalancedchanging; unbalancedconstant; balanced120s
- Q9_______ measures an object's change in position per unit time.DistanceForceAccelerationSpeed120s
- Q10Chip and Don are racing in go-karts. Chip is directly behind Don as they reach the straightaway. Both drivers are going the top speed of 25 mph. If Chip is the reference point, which statement correctly describes Don's motion relative to Chip?Don is not moving.Don is speeding up.Don is moving at 25 mphDon is slowing down.120s
- Q11Gina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes. The force of the brakes causes the car to stop, but the teddy bear continues to move forward until it hits the car's dashboard. The teddy bear did not stop at the same time as the car becauseobjects in motion can only be stopped by the application of a balanced force.objects in motion tend to stay in motion unless acted upon by an outside force.only objects touching the Earth's surface can be acted upon by an outside force.more force is required to stop softer objects than to stop harder objects.120s
- Q12If an object is moving at a constant speed in one direction, what is needed to change its speed or direction?a long period of timean unbalanced forcea balanced forcea short period of time120s
- Q13Which of these shows unbalanced forces at work on an object?a bicycle chained to a bike rack at schoolan ice skater turning as he skates around an ice rinka car driving at a constant 25 miles per hour on a straight streeta water skier pulled by a boat at a constant 30 mph120s
- Q14A cart is rolling across the floor at a constant velocity of 2 m/s to the right. The cart is pushed again to the right, and it starts to speed up. How are the force of the push and speed of the cart related?The balanced push causes the cart to speed up.The force of gravity makes the car speed up.The force and speed are not related.The unbalanced push causes the cart to speed up.120s
- Q15Hannah just finished building a house of cards that stands four-stories high. She is worried that it will fall down. Which of the following statements is definitely true?If no unbalanced force acts upon the house of cards, then it will remain standing forever.As long as nobody touches the house of cards, it will remain standing.If Hannah adds another card to the house of cards, then it will fall down.A house of cards is too fragile and must fall down eventually.120s