Gravity, Inertia, and Orbits

The tendency of an object to resist a change in its motion

• weight

• inertia

• mass

• gravity

A force which tries to pull two objects towards each other is

• gravity

• inertia

• mass

• speed

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Gravity is based on an object's

• mass

• size

• roundness

• brightness

Tags

NGSS.MS-PS2-4

What keeps the planets in orbit around the sun?

• gravity and inertia together

• gravity

• inertia

• neither gravity or inertia

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

NGSS.MS-ESS1-1

What would happen to Earth if there were no gravity?

• Earth would crash into the sun

• Earth would fly out to space

• Earth would collapse

• Earth would orbit the moon

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Because of inertia, a moving object will keep ________.

• still

• moving

• in one spot

• inertia

Dust and other particles of matter can ____________ to form the beginning of a planet.

• accretion

• coalesce

• asteroid

• spherical

Tags

NGSS.MS-ESS1-2

Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

Which of the following will not change in different gravitational fields?

• wieght
• force
• mass
• pounds

Look at the image: Which model has greater gravitational attraction (if any)

• Model A

• Model B

• Both Model A and Model B (same gravity)

• Neither Model A and Model B

Tags

NGSS.MS-PS2-4