If centripetal force stopped acting on all satellites they would continue traveling in space in a constant direction and constant speed.

• True

• False

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which variables affect gravity?

• mass

• speed

• distance

• volume

• weight

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Linda threw two stones, one in a horizontal direction and another one straight up. She observed that both stones fell back to the ground. Based on her observations, the BEST explanation would be that gravity is a force that

• pushes up towards the sky.

• acts in the direction any objects moves.

• pushes objects in two directions.

• pulls down towards the earth.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The gravitational force between two objects will be very small, unless which of the following is true?

• The objects must be very far apart.

• One of the objects must have a very large mass.

• Both objects must have very large masses.

• Both objects must be in the solid state of matter.

• Both objects are close together

Tags

NGSS.MS-PS2-4

What is gravitational force?

• It makes objects at rest start moving.

• It makes objects that are moving stop.

• The force of attraction between two objects.

• It pulls you into space.

Tags

NGSS.HS-PS2-4

A person would weigh less on on the Moon than on the Earth because . . .

• Moon has more mass, and therefore more gravity

• Moon has less mass, and therefore more gravity

• Moon has more mass, and therefore less gravity

• Moon has less mass and therefore less gravity

Tags

NGSS.MS-PS2-4

Reorder the following From Least amount of gravity to the most amount of gravity

• Mar's Moon

• Sun

• Saturn

• You

• Atom

Tags

NGSS.MS-ESS1-2

The table below shows four examples of pairs of objects, their masses, and the distances between them. In which example is the gravitational force of attraction between the two objects the greatest?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

More mass equals ​ (a)   . More distance equals ​ (b)   . The object that is ​ (c)   or has the ​ (d)   will pull the other object towards it.

• more gravity

• less gravity

• less mass

• more mass

• heavier

• matter

• closer

• largest mass

• smaller mass

• farther

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Gravitational forces are always

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4