U2.31 Checkpoint #7

Which of the following statements best describes the force of gravity?

• It is a force that pushes objects apart.

• It is an attractive force that pulls objects together.

• It is a force that only affects planets.

• It is a force that stops objects from moving.

Tags

NGSS.MS-PS2-4

What two factors determine the strength of the gravitational force between two objects?

• The objects' speed and distance

• The objects' size and shape

• The objects' masses and the distance between them

• The objects' temperature and mass

Tags

NGSS.MS-PS2-4

What happens to the gravitational pull of an object if its mass increases?

• It decreases.

• It stays the same.

• It increases.

• It becomes a pushing force.

Tags

NGSS.MS-PS2-4

As the distance between two objects, like the Earth and Moon, gets larger, what happens to the gravitational force between them?

• The force becomes stronger.

• The force becomes weaker.

• The force does not change.

• The force changes from attraction to repulsion.

What is the primary force responsible for keeping planets in orbit around the Sun?

• Magnetic force

• Frictional force

• Electric force

• Gravitational force

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following objects has the greatest gravitational force?

• A basketball

• The Moon

• The Earth

• The Sun

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Why does a person on Earth not feel the gravitational pull of Jupiter?

• Jupiter has no mass.

• The distance between Earth and Jupiter is very large.

• Earth blocks Jupiter's gravity completely.

• The Moon's gravity cancels out Jupiter's gravity.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Consider the four pairs of objects below. Which pair would have the greatest gravitational attraction between them?

• The two smallest objects that are farthest apart.

• The two smallest objects that are closest together.

• The two largest objects that are farthest apart.

• The two largest objects that are closest together.

Tags

NGSS.MS-PS2-4

Planet Mars has less mass than Earth. If you were to stand on Mars, how would its gravitational pull on you compare to Earth's?

• The pull would be stronger.

• The pull would be weaker.

• The pull would be exactly the same.

• There would be no pull.

Tags

NGSS.MS-PS2-4

The diagram shows a planet at four different points in its orbit around a star. At which point is the gravitational force between the planet and the star the strongest?

• Point A

• Point B

• Point C

• Point D

• Point E

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4