Pregunta 1
Pregunta
A change in position in a certain amount of time is called
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acceleration
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speed
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displacement
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distance
Pregunta 2
Pregunta
A car travels 440 miles in 11 hours. The speed of the car is
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100 mph
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80 mph
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0.025 mph
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40 mph
Pregunta 3
Pregunta
If the speed of something is given and the time is also given, how can you calculate the distance traveled?
Pregunta 4
Pregunta
If the distance of something is given and the speed is also given, how can you calculate the time?
Pregunta 5
Pregunta 6
Pregunta
If two forces have the same direction you must _____ to find the net force
Pregunta 7
Pregunta
If two forces have the opposite direction you must _____ to find the net force
Pregunta 8
Pregunta
Friction is a force that acts in a direction the _________ of the motion
Pregunta 9
Pregunta
You are racing a cart down the hallway. If you go 10 meters in 5 seconds, what is
your speed?
Pregunta 10
Pregunta
Ms. Parks can run 50 yards in 10 seconds and Ms. Briscoe can run 100 yards in 20 seconds. Who has a faster speed?
Pregunta 11
Pregunta
A net force (an unbalanced force that changes motion) causes an object to
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stay the same speed
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not move
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accelerate or decelerate
Pregunta 12
Pregunta
Forces that are equal in size and opposite in direction are known as
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balanced forces
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unbalanced forces
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friction forces
Pregunta 13
Pregunta
If a car is traveling on the highway at a constant velocity, the force that pushes
the car forward must be
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equal to the force of friction exerted upon the car
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greater than the weight of the car
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greater than the force of friction exerted upon the car
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equal to the weight of the car
Pregunta 14
Pregunta
If a car is traveling on the highway at an increasing velocity, the force that pushes
the car forward must be
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equal to the force of friction exerted upon the car
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greater than the weight of the car
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greater than the force of friction exerted upon the car.
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equal to the weight of the car
Pregunta 15
Pregunta
Bella puts an iron block in a bucket of water. The block sinks.
Which of the following forces is acting on the block?
I. the force of the liquid pushing up on the block
II. the force of gravity pulling down on the block
III. the force of the liquid pulling down on the block
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II and III only
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I and II only
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I only
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I, II, and III
Pregunta 16
Pregunta
When an unbalanced force acts on an object, the change in the object's _______ or _______ depends on the size and direction of the force.
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position; mass
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direction; mass
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mass; speed
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speed; direction
Pregunta 17
Pregunta
What happens to the gravitational force between two objects as the bodies become farther apart from each other?
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The gravitational force decreases.
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The gravitational force stays the same
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The gravitational force begins to repel the objects
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The gravitational force increases
Pregunta 18
Pregunta
Jennifer stands on one side of a filing cabinet and pushes with a force of 60 N. If Nathan wants to help Jennifer demonstrate balanced forces, what does he need to do?
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stand on the opposite side of the cabinet and push with a force of 60 N toward Jennifer
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stand on the same side of the cabinet and push with a force of 60 N in the same direction as Jennifer
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stand on the opposite side of the cabinet and push with a force of 120 N toward Jennifer
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cause the cabinet to move
Pregunta 19
Pregunta
While in empty space, an astronaut throws a ball at a velocity of 9 m/s. What will the velocity of the ball be after it has traveled 2 meters?
Pregunta 20
Pregunta
Balanced forces will cause an object to move at a constant speed or to remain at rest. Which of the following graphs shows this situation?
Pregunta 21
Pregunta
How would the forces on the book best be described?
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The forces on the book are unbalanced.
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The forces on the book cause a change in the book's motion.
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The forces on the book do not cancel each other out.
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The forces on the book are balanced.
Pregunta 22
Pregunta
The image below shows a force of 10 N being applied to an object. The force is being applied toward the right, and the object is accelerating toward the right. No other force is acting on the object. Examine the image, and then answer the question that follows.
A second force of 13 N is applied to the object. If this second force is applied toward the left, which of the following will occur?
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The object will begin moving toward the left, and it will accelerate at a greater rate than before
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The object will continue moving toward the right, but it will accelerate at a greater rate.
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The object will continue moving toward the right, but it will move at a slower speed.
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The object will experience acceleration toward the left
Pregunta 23
Pregunta
Here is part of a travel graph of Siân’s journey from her house to the shops and back.
What is Siân’s average speed for the first 40 minutes of her journey?
Pregunta 24
Pregunta
Analyse the following graphs.
Graph 1 shows an object...
Pregunta 25
Pregunta
Analyse the following graphs.
Graph 2 shows an object...
Pregunta 26
Pregunta
Analyse the following graphs.
Graph 3 shows an object...