Gravity and Stars

The intense ______ at the core of a star causes it to produce light.

• sound

• gravity

• cold

• heat

Tags

NGSS.HS-ESS1-1

Distances in space are so great, they are often measured in _________.

• feet per second

• light years

• leap years

• miles

Tags

NGSS.MS-ESS1-3

The sun’s gravity is _________ Earth’s because the sun is _________ than Earth.

• weaker than, bigger

• weaker than, smaller

• stronger than, smaller

• stronger than, bigger

Tags

NGSS.MS-PS2-4

Where is Earth's gravity the strongest?

• in an airplane

• it is always the same

• on top of a mountain

• closer to the ground

Stars you see in the night sky produce lots of light. You can see only a tiny bit of that light because

• most of the light does not travel directly toward Earth.

• most of the light cannot travel far enough to reach Earth.

• the light slows down as it travels through space.

• most of the light travels too far to be seen on Earth.

Ella wants to test the effects of gravity on different objects. She decides to test the effects of gravity on objects that have different weights. She chooses a paper crane, a golf ball, and a large book. She then drops them from the same height. How is gravity likely to affect each of these objects?

• All the objects will fall in the exact same location because gravity pulls everything to the exact same place.

• All the objects will fall “down” because they are pulled by gravity.

• The objects will all fall in different places because gravity affects objects of different weights in different ways.

• The golf ball and the large book will fall to the ground, but the paper crane will float.

Tags

NGSS.MS-PS2-4

____________is a chunk of rock floating in space that enters Earth's atmosphere.

• A meteorite

• A meteor

• A meteroid

• A shooting star

In which direction does Earth’s gravity pull?

• toward Earth’s center

• toward the tallest mountain

• toward the sun

• toward the North Pole

Gravity ________

• pushes on objects.

• is only on Earth.

• pulls on objects.

• all of the above

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Why does only a small part of a star’s light reach Earth?

• The light is destroyed by the darkness of space.

• The light spreads out as it moves through space.

• The sun absorbs most of the light.

• The atmosphere blocks most of the light.