2379260
Descrição
Quiz por Canaan Sipe, atualizado more than 1 year ago
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Criado por Canaan Sipe
mais de 9 anos atrás
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Questão 1
Questão
Pam ran down the sidewalk to school with her empty backpack. After school, Pam’s backpack was loaded with books. Which best describes the force required to carry her book bag home?
Responda
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It took the same amount of force to carry the loaded book bag home.
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It took a greater amount of force to carry the loaded book bag home.
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It took a lesser amount of force to carry the loaded book bag home.
Questão 2
Questão
Sam is building a car to race down a ramp. The car weighs 100 grams. Which could Sam do to increase the speed of the car?
Responda
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increase the mass of the car
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decrease the mass of the car
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increase the friction on the ramp
Questão 3
Questão
How does friction affect speed?
Responda
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more friction decreases speed
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more friction increases speed
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less friction decreases speed
Questão 4
Questão
Tamara and Justin are racing on the playground. Tamara runs the distance from the basketball goal to the jungle gym in 45 seconds, while Justin runs the same distance in 52 seconds. Which best describes the movement of the students?
Responda
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The students ran in different directions.
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Both students ran at the same speed.
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Tamara ran faster than Justin.
Questão 5
Questão
A girl walked for 30 minutes. She noticed that she traveled farther in the first 15 minutes of her walk than in the second 15 minutes. What can she conclude about her walk?
Responda
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She walked over many hills.
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Her average speed was faster during the first half of her walk.
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She walked in two different directions.
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She was walking at a constant speed.
Questão 6
Questão
James and Roy compare the motion of two balls by rolling them across the floor and recording the time it takes them to travel the same distance. Ball X travels the distance in 15 seconds. Ball Y travels the distance in 11 seconds. Which best compares the motion of the two balls?
Responda
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Ball X travels faster than Ball Y.
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Ball Y travels faster than Ball X.
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Both balls travel at the same speed.
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Both balls travel at a constant speed.
Questão 7
Questão
Which best describes the force of gravity?
Responda
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a pulling force
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a pushing force
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a change in mass
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a change in speed
Questão 8
Questão
When is friction needed during the course of motion?
Responda
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to speed up motion
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to slow down motion
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to keep motion at the same speed
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to keep motion in the same motion
Questão 9
Questão
Based on the graph, what can be inferred about the speed of the vehicle?
Responda
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It is not moving.
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It is slowing down.
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It is traveling at a constant speed.
Questão 10
Questão
Four different students take turns pushing a large, heavy ball on the school parking lot. What is the best way to determine which student used the most force to push the ball?
Responda
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rolling the car down a steep ramp and measuring time
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using a spring scale and measuring the weight of the car
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pushing the car and measuring how far it travels before it stops
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throwing the car in the air and measuring how far it goes before coming down
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