Gravity

Question 1

best

Revolt · Accepted Answer

The objects have the same acceleration.

Question 2

What units are used to measure mass and weight?

Revolt · Accepted Answer

Mass is measured in kilograms, and weight is measured in newtons.

Question 3

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

Revolt · Accepted Answer

increasing the masses of the objects and decreasing the distance between the objects

Question 4

What is the weight, on Earth, of a book with a mass of 1.5 kg?

Revolt · Accepted Answer

14.7 N

Question 5

Why are objects that fall near Earth’s surface rarely in free fall?

Revolt · Accepted Answer

Air exerts forces on falling objects near Earth’s surface.

Question 6

What is the only force that can act on an object in free fall?

Revolt · Accepted Answer

gravity

Question 7

Which describes an object in projectile motion?

Revolt · Accepted Answer

The object’s inertia carries it forward.

Question 8

A ball is thrown forward at 5 m/s.

Revolt · Accepted Answer

The ball would curve down more sharply on Earth than on the moon.

Question 9

The table shows the masses of four objects.

Revolt · Accepted Answer

the rock

Question 10

The gravitational force between two objects is 100 N.

Revolt · Accepted Answer

400 N

Gravity Answers