Gravity and Orbits Inertia Orbital Motion

Gravity pulls everything toward...

• The ground
• The center of mass
• The moon
• The Sun

Tags

NGSS.HS-PS2-4

What are three things all planets have in common?

• they are spherical, they have at least one moon and they have gravity
• Orbit the sun, massive enough that their gravity controls all objects in the area and they are spherical
• they have at least one moon, they are spherical and they were made by accretion
• they are spherical, they orbit the sun and they have living organisms 

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Why does Earth's surface bulge at the equator?

• The North Pole and South Pole push towards the center of mass
• Earth had a big lunch
• Earth's rotation creates centrifugal force
• Earth is confused

Gravity attracts all objects towards one another.

• False
• True
• It depends

Tags

NGSS.MS-PS2-4

Any object with mass has gravity.

• True
• Sometimes
• False
• Never

Tags

NGSS.MS-PS2-4

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

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance 
• mass and matter
• distance and weight 
• weight and mass

Tags

NGSS.MS-PS2-4

If Earth's mass was cut in half, what would happen to your mass?

• increase because gravitational force increases
• decrease because gravitational force decreases
• decrease because gravitational force increases
• nothing, mass is not affected by gravitational force

If Earth's mass was cut in half, what would happen to your weight?

• Increase because gravitational force increases
• decrease because gravitational force decreases
• decrease because gravitational force increases
• nothing, weight is not affected by gravitational force

Tags

NGSS.MS-PS2-4