AnswersAL Physical Science AIntroduction to Forces

Gravity Answers

10 verified answers
1
Free Preview

What units are used to measure mass and weight?

M
Mass and weight are measured in kilograms.
M
Mass and weight are measured in newtons.
M
Mass is measured in kilograms, and weight is measured in newtons.
M
Mass is measured in newtons, and weight is measured in kilograms.
3

best

T
The heavier object has a greater acceleration.
T
The object that has the greater surface area has the lower acceleration.
T
The object that has the smaller mass has the greater acceleration.
T
The objects have the same acceleration.
4

When does a skydiver achieve terminal velocity?

w
when gravity equals air resistance
w
when gravity is greater than air resistance
w
when air resistance acts on the diver and gravity does not
w
when gravity acts on the diver and air resistance does not
5

Increasing which factor will cause the gravitational force between two objects to decrease?

A
weights of the objects
B
distance between the objects
C
acceleration of the objects
D
masses of the objects
6

The table shows the masses of four objects.

Question illustration
A
the book
B
the rock
C
the box
D
the fish
7

A ball is thrown forward at 5 m/s.

A
The ball would follow a curved path on Earth but a straight path on the moon.
B
The ball would follow the same curved path on Earth as on the moon.
C
The ball would curve down more sharply on Earth than on the moon.
D
The ball would curve down on Earth but curve up on the moon.
8

Which change will always result in an increase in the gravitational force between two objects?

A
increasing the masses of the objects and increasing the distance between the objects
B
decreasing the masses of the objects and decreasing the distance between the objects
C
increasing the masses of the objects and decreasing the distance between the objects
D
decreasing the masses of the objects and increasing the distance between the objects
9

Which describes an object in projectile motion?

A
Gravity acts to push the object sideways.
B
The object moves in a straight path.
C
The forward velocity of the object is 0 m/s.
D
The object’s inertia carries it forward.
10

Hector drew the diagram below to illustrate projectile motion.

Question illustration
H
He should switch the labels “Gravity” and “Inertia.”
H
He should make the arrow for “Path” curve downward.
H
He should switch the labels “Inertia” and “Path.”
H
He should make the arrow for “Inertia” curve downward.

Did you find these answers helpful?