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8th Grade Science
Formative Assessment #10
Multiple Choice
Directions: Identify the choice that best completes the statement or answers the question.
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1.
Tania was asked to describe the relationship between electricity and magnetism as it relates
to the Earth’s atmosphere. Which of the following statement would best explain this
relationship, knowing that electric fields and magnetic fields make up the electromagnetic
forces.
A. Electricity and magnetism are two forces that interact with Earth’s atmosphere to
produce precipitation.
B. Electricity and magnetism are two forces that interact with Earth’s atmosphere to
produce global warming.
C. Electricity and magnetism work hand in hand to repair the hole in the ozone layer that
protects the Earth from solar radiation.
D. Electricity and magnetism are involved when solar winds interact with Earth’s magnetic
field to produce electric charges responsible for auroras.
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2.
Randolph was analyzing the behavior of objects on each other. He recalls that every object
exerts gravitational force on every other object, but could not identify the object’s property
that plays a role in the gravitational force that is exerted on other object. What is that
property?
A.
B.
C.
D.
mass
color
volume
temperature
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3.
Peter is reading his first book about astronauts. He soon discovers that astronauts weigh less
on the Moon than they do on Earth. Which of the following best explains why astronauts
tend to experience weightlessness in outer space?
A.
B.
C.
D.
Earth has more friction than the Moon.
Astronauts have less density on the Moon.
Earth’s gravity is stronger than the Moon’s.
Astronauts have more mass on Earth than on the Moon.
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4.
The diagram below shows forces acting on a model airplane. Both its speed and height
above the ground are constant.
A.
B.
C.
D.
The lift is equal to the drag.
The lift is less than the weight.
The thrust is equal to the weight.
The thrust is greater than the drag.
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5.
Reginald slipped and broke his leg in his kitchen when he ran inside to grab a cookie. His
mother had just mopped the floor. What is the reason for this?
A.
B.
C.
D.
The water increases the friction between the floor and the feet.
The water produces a new force between the floor and the feet.
The water decreases the friction between the floor and the feet.
The water sets up a magnetic force between the floor and the feet.
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6.
Talia and Amanda live across the street from each other and they walk to school together
every morning. The school is about 3 blocks away.
Analyze the graph above and choose the statement below that is a possible interpretation of
the section of the graph from point B to C?
A.
B.
C.
D.
They waited before crossing a busy street.
They returned home to get their mathematics book
They reached the top of a hill and began accelerating.
They slowed down their walk and met up with friends.
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7.
You are riding fast on a skateboard when your wheel suddenly gets stuck in a crack on the
sidewalk. Why does your body go flying forward?
A.
B.
C.
D.
there is a net force pushing you off your skateboard
your inertia keeps you moving forward
your mass is greater than your speed
someone pushed you
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8.
Which of the following statements best explains what happens when two bodies move away
from one another?
A.
B.
C.
D.
They are pulled back together by gravitational attraction.
The gravitational attraction of the larger object increases.
The gravitational attraction between them decreases.
Their masses begin to gradually increase.
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9.
Marc’s science class covered the Law of Gravity today. Although he copied his friend’s
notes, he is unable to explain the diagram below.
Which of the following statement is true regarding the Law of Gravity and the diagram above.
A.
B.
C.
D.
The larger the object the weaker it’s gravitational force
The smaller the object the stronger the gravitational force
The closer the objects are the greater the gravitational force
The farther apart the objects are the greater the gravitational force
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10.
As an astronaut travels from the surface of Earth to a position that is four times as far away
from the center of Earth, based on the Law of Gravity which of the following statement is
true?
A.
B.
C.
D.
mass decreases and the gravitational pull from Earth increases
weight increases and the gravitational pull from Earth stays the same
mass remains the same and the gravitational pull from Earth decreases
weight remains the same and the gravitational pull from Earth changes
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8th Grade Science
Formative Assessment #10
Answer Key
Answer
Benchmark
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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Correct
Answer
D
A
C
B
C
A
B
C
C
C
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DOK
2
2
2
2
2
2
2
1
1
1
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