FORCE & MOTION REVIEW. Question 1 A large bus travels city streets. It takes the bus 10 seconds to...
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![Page 1: FORCE & MOTION REVIEW. Question 1 A large bus travels city streets. It takes the bus 10 seconds to cross each city block. If all the city blocks are the.](https://reader036.fdocuments.in/reader036/viewer/2022062619/5516c44a550346a25b8b6206/html5/thumbnails/1.jpg)
FORCE & MOTION REVIEW
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Question 1
A large bus travels city streets. It takes the bus 10 seconds to cross each city block. If all the city blocks are the same length, what can be said about the bus?
A. It is accelerating.B. It is decelerating.C. It is moving at a constant velocity.D. It is moving with varying acceleration.
Answer: It is moving at a constant velocity.
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Question 2
Which of the following examples of forces acting on objects requires the objects in question to come into physical contact with one another?
A. The transfer of motion between balls on a pool table.B. The falling of a bird’s feather toward the ground.C. The movement of a compass needle to point to the
northD. The orbiting of the moon around Earth.
Answer: The transfer of motion between balls on a pool table.
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Question 3
The graph shows the position of a car in motion along an east-west road over a period of 10 minutes. The car’s position is recorded at 1-minute intervals. At time = 0, the car’s position is at the starting point.
What is the car’s motion relative to the starting point at time = 8 minutes?
A. at rest at the starting pointB. in motion at the starting pointC. moving toward the starting pointD. moving away from the starting point
Answer: Moving toward the starting point
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Question 4
The graph shows the position of a car in motion along an east-west road over a period of 10 minutes. The car’s position is recorded at 1-minute intervals. At time = 0, the car’s position is at the starting point.
What is the total distance traveled by the car after 10 minutes?
A. 600 metersB. 1,200 metersC. 2,000 metersD. 3,600 meters
Answer: 1,200 meters
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Question 5
On Saturday Ashley rode her bicycle to visit Maria. Maria’s house is directly east of Ashley’s. The graph below shows the distance Ashley was from her house after each minute of her trip.
According to the graph, during which time segment was Ashley moving the fastest?
A. Between 0 and 2 minutesB. Between 0 and 4 minutesC. Between 4 and 8 minutesD. Between 8 and 10 minutes
Answer: Between 8 and 10 minutes
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Question 6
A car is traveling south at a speed of 64 miles per hour and then begins traveling west but continues traveling at the same speed. Which of the following has changed?
A. massB. velocityC. speedD. gravity
Answer: velocity
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Question 7
What causes changes in motion?
A. forceB. change in positionC. velocityD. speed
Answer: force
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Question 8
You watch a person dive off a diving board. What reference point have you probably used to determine the diver’s motion?
A. the other divers climbing up to the diving boardB. the birds flying byC. the diving boardD. the swimmers In the water
Answer: the diving board
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Question 9
Objects remaining at rest or continually in motion have
A. massB. inertiaC. speedD. Friction
Answer: inertia
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Question 10
What was the total distance traveled by the runner?
A. 10 metersB. 20 metersC. 30 metersD. 40 meters
Answer: 40 meters
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Question 11
Which of these describes the speed of the runner during the entire trip?
A. increasedB. constantC. decreasedD. varied
Answer: constant
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Question 12
Which statement explains why the rope is moving toward the team on the left?
A. the unbalanced force accelerates the object in the direction of the stronger force
B. the balanced force allows the rope to move to the leftC. the net force between the two teams is zeroD. the rope is shorter on the left
Answer: the unbalanced force accelerates the object in the direction of the stronger force
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Question 13
The force of ___________ is the attraction between objects.
A. gravityB. weightC. motion D. Friction
Answer: gravity
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Question 14
Motion is
A. an increase in the speed of an objectB. a decrease in the speed of an objectC. the stopping of an object relative to a frame
of referenceD. a change in position relative to a frame of
reference
Answer: a change in position relative to a frame of reference
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Question 15
An object at rest will remain at rest and an object in motion will remain in motion unless acted upon by a force.
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 1st Law of Motion
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Question 16
A train is traveling west at a speed of 35 mph and then changes direction and heads north at the same speed. What has changed?
A. SpeedB. MomentumC. VelocityD. Inertia
Answer: velocity
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Question 17
In the diagram below, g is the force of gravity, r is the force of the ramp acting on the car and f is the force of friction.
Which diagram shows the directions of the forces acting on a car as it travels down the ramp?
Answer:
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Question 18
Acceleration of an object depends on its mass and the size and direction of the force acting on it.
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 2nd Law of Motion
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Question 19
For every action, there is an equal and opposite reaction.
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 3rd Law of Motion
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Question 20
It is a calm, clear, sunny afternoon. You are traveling forward in a moving car, why do the trees outside appear to be moving backwards?
A. You are judging motion as if you were stationary.B. The wind is blowing the trees. C. The moving car affects your balance.D. It is an optical illusion.
Answer: You are judging motion as if you were stationary
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Question 21
Chris is on his way to work. It had been a busy morning and he was running late. As Chris approached an intersection, the traffic light turned from yellow to red. This frustrated him because he had to be at work in five minutes.
Above is the motion graph of Chris’s morning commute from his home to his work. How long was Chris stopped at the traffic light?
A. Chris was stopped at the traffic light for 2 minutes
B. Chris was stopped at the traffic light for 6 minutes.
C. Chris was stopped at the traffic light for 8 minutes.
D. Chris was stopped at the traffic light for 15 minutes.
Answer: Chris was stopped at the traffic light for 2 minutes
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Question 22
A force that acts in a direction opposite to the motion of the moving object.
A. FrictionB. GravityC. Static ForceD. Momentum
Answer: Friction
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Question 23
Ms. Williams’ science class uses a toy car race to study and collect data about forces and motion. The racetrack shown has a 6-meter ramp and a 5-meter level section to the finish line. Two cars compete at a time.
On what section of the racetrack will the forces on the cars be balanced?
A. the starting blockB. the ramp onlyC. the level section after the rampD. the entire track
Answer: the starting block
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Question 24
Ms. Williams’ science class uses a toy car race to study and collect data about forces and motion. The racetrack shown has a 6-meter ramp and a 5-meter level section to the finish line. Two cars compete at a time.
At what point on the track does a car reach its fastest speed?
A. halfway down the rampB. at the bottom of the rampC. halfway down the level sectionD. at the finish line
Answer: at the bottom of the ramp
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Question 25
A seatbelt is used to protect you from which of Newton’s Laws of Motion?
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 1st Law of Motion
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Question 26
Which one of Newton’s Laws of Motion explains why it is easier to push an empty shopping cart than one filled with groceries?
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 2nd Law of Motion
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Question 27
A rocket is an example of which one of Newton’s Laws of Motion?
A. Newton’s 1st Law of MotionB. Newton’s 2nd Law of MotionC. Newton’s 3rd Law of Motion
Answer: Newton’s 3rd Law of Motion