Tuesday 2/7/23 Bell Ringer

The force that causes objects with mass to attract one another.

• Weight

• Gravity

• Mass

• Magnetism

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

NGSS.MS-ESS1-2

The gravitational attraction between two objects would increase if both masses are –

• increased, and the distance between them is increased.

• increased, and the distance between them is decreased.

• decreased, and the distance between them is decreased.

• decreased, and the distance between them is increased.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

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-PS2-4

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Gravity attracts all objects towards one another.

• False
• True
• It depends

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

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

NGSS.MS-PS2-5

What is the biggest difference between the Geocentric Model and the Heliocentric Model?

• the shape of the planets' orbits

• the movement of the moon

• the center of the solar system

What is the name of this model?

• Heliocentric Model

• Geocentric Model

• Circle Model

• Aristotle Model

Tags

NGSS.MS-ESS1-1

What did Ptolemy's and Aristotle's model have in common?

• Both models had Earth as the center of the solar system.

• Both discovered galaxies beyond the Milky Way.

• Both models had the sun as the center of the solar system.

• Both model had objects in solar system have epicycles.

What evidence in support of the heliocentric model of the solar system did Galileo discover with his telescope?

• The moon is a "world" with mountains and valleys

• Venus exhibits changing phases as it orbits the sun

• Jupiter has moons that orbit it - not orbit the Earth.

• all of these are correct

Answer explanation