AnswersCMS Summer 2026 Earth and Environmental Science CREDIT RECOVERYLab: Energy Transfer

Gravity and Motion Answers

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1
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Which statement explains how weight is different from mass?

A
Mass is a varying property.
B
Mass is measured in newtons.
C
Weight is always greater than mass.
D
Weight is a measure of gravitational pull.
2
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Which statement describes Newton’s law of universal gravitation?

A
Mass has little effect on gravity between objects.
B
Gravity pushes objects away from Earth’s center.
C
Gravity does not act between Earth and the moon.
D
Every object in the universe attracts every other object.
3

In addition to how much force Earth exerts on the object, which features of an object affect its weight?

A
mass and location of the object
B
shape and location of the object
C
location of the object and how much energy the object has
D
mass of the object and how much energy the object has
4

Which description explains how inertia changes the effects of gravity on objects in the solar system?

A
keeps the Sun stationary
B
pulls asteroids toward Earth
C
causes shooting stars to stop moving
D
prevents planets from pulling into one another
5

According to Newton’s first law, which characteristic of a moving object would remain constant if there were no other forces acting on it?

A
size
B
mass
C
shape
D
speed
6

Which statement explains how gravity and inertia work together?

A
They change the motion of objects.
B
They take turns working on objects.
C
They keep all objects moving at the same speed.
D
They prevent objects from moving in a circular motion.
7

Which statement describes how Earth compares to the moon?

A
Earth has more inertia than the moon.
B
The moon has more gravitational pull than Earth.
C
The moon rotates at a constant speed while Earth’s speed varies.
D
Earth and the moon will not change their motion when acted on by a force.
8

The diagrams show objects’ gravitational pull toward each other.

Question illustration
A
Gravity attracts only larger objects toward one another.
B
Gravity attracts larger objects only if they are close to one another.
C
If the masses of the objects increase, then the force between them also increases.
D
If distance between the objects increases, then the amount of force also increases.
9

The diagram shows the moon and Earth in space.

Question illustration
A
force of Earth’s gravity
B
moon’s attraction to the Sun
C
moon’s motion without gravity
D
orbit of the moon around Earth
10

A student is asked to describe the path of a paper airplane that is thrown in the classroom.Which statement best describes the path of the paper airplane?

A
The paper airplane will move in a straight line, according to Newton’s first law of motion.
B
The paper airplane will drop straight to the ground once its inertia gives in to the force of gravity.
C
The paper airplane will create a curved path toward the floor as it is pulled toward Earth’s center.
D
The paper airplane will orbit around the desk because it is the object with the largest mass in the room.

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