Review for Astronomy 1 Test

Why do the planets orbit the sun?

• the gravity of the Sun

• 99.8 % of the mass of the solar system is contained in the Sun

• The Sun is so massive that it has a very large gravitational pull

• all the other answers are true

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What would happen to an object in orbit without gravity pulling down?

• It would crash into the object it is orbiting.
• It would continue to orbit
• it would stop its motion
• it would fly off into space

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

. An object's orbital path is a result of the balance between

• gravity and mass
• gravity and inertia
• mass and distance
• mass and inertia

Tags

NGSS.MS-ESS1-2

Why don't people on Earth get pulled into the Sun?

• because we can't fly
• because the Earth is smaller than the sun
• because we are closer to the Earth than the sun
• because the sun is larger than the earth

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the force that holds galaxies together?

• friction

• magnetism

• electromagnetism

• gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What is the definition of "weight"?

• measure of the force of gravity on your body
• the time it takes to get on a ride 
• the amount of matter in an object
• the size of an object

Tags

NGSS.MS-PS2-4

A measure of how much matter an object has is--

• weight
• gravity
• mass
• volume

On which celestial object would you weigh the most?

• Earth
• Jupiter
• Sun
• You would weigh the same on all celestial objects

On which celestial object (outer space) would your mass be the greatest?

• Earth

• Jupiter

• Sun

• Your mass doesn't change on different celestial objects

Which model has greater gravitational attraction (if any)

• Model A
• Model B
• Both Model A and Model B (same gravity)

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4