6.11b

What determines the gravitational strength of an object?

• Mass and weight

• Mass and distance

• Distance and density

• Density and mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A basketball and a volleyball are roughly the same size but have different mass. In Science class, students conducted an experiment of what would happen if both were dropped from the roof of the school. What do you think the students saw?

• both balls hit the ground at the same time due to the force of gravity being equal on both balls

• the basketball hit slightly before the volleyball because it has a little more mass than the volleyball

• the volleyball hit first because it is lighter and therefore accelerates faster than the basketball with more mass

• none of these

Tags

NGSS.MS-PS2-2

The use of the Moon's gravity to propel a spacecraft from the Moon's orbit back toward Earth is called what?

• free gravity effect

• slingshot effect

• shotgun effect

• none of these

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

The gravity on the outer planets of our solar system is not as strong as the inner planets. Why is this?

• the inner planets are smaller and therefore have less gravity than the larger outer planets

• gravity is the same on all planets in the solar system regardless of their size and distance from the Sun

• none of these

• the outer planets are further away and therefore gravity is weaker than on the inner planets

Tags

NGSS.MS-ESS1-2

True or False? The closer an object is to another the stronger the gravitational force.

• True

• False

• Not enough information to answer the question

An astrobiologist has found a two new planets orbiting a star similar to our own Sun. Planet A is closer than Planet B. Which planet will be affected the least by the gravitational pull of the star?

• Planet B

• Planet A

• neither planet will be affected by the gravitational pull of the star

• the gravitational pull will not be noticeable

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

If mass ____________ the force of gravity increases. If distance _____________ the force of gravity will decrease.

• increases, decreases

• decreases, increases

• stops, increases

• none of these

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Gravity can be defined as the –

• force of attraction between two or more masses.

• friction created when two objects are in contact.

• energy given off by stars due to nuclear reactions.

• path an object follows as it moves through space.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull

• The Sun’s chemical composition makes it attract planets

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which of the following would have the smallest gravitational attraction between the two masses?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-4