Space and Gravity

Why is the sun brighter than other stars in the sky?

• It is bigger than all of the other stars in space.

• It is closer to the Earth.

• It is the only star in our solar system.

What is gravity?

• A force that causes objects to repel each other.

• A type of energy.

• A large celestial object, such as a planet or a star

• A force that causes objects to attract each other.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Why is Earth's gravitational force stronger than the moon's gravitational force?

• Earth and the moon have the same mass, therefore they keep each other in line in space.

• The earth has less mass, therefore it has a stronger gravitational force.

• The earth has more mass, therefore it has a stronger gravitational force.

Tags

NGSS.MS-PS2-4

The sun's gravity helps...

• keep the Earth in orbit around the Sun.

• keep the moon in orbit around the Earth.

• to shape the Earth as a sphere.

• to control the tides on Earth.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

The moon's gravity...

• allows the moon to revolve around the sun.

• allows the Earth to rotate.

• pulls on Earth's ocean waters.

• doesn't do anything.

Tags

NGSS.MS-ESS2-4

What motion is responsible for night and day?

• The revolution of Earth around the sun.

• The rotation of Earth.

• The revolution of the moon around the Earth.

• The rotation of the moon.

Tags

NGSS.MS-ESS1-1

What motion is responsible for the seasons?

• The rotation of the sun.

• The rotation of the Earth.

• The revolution of Earth around the sun.

• The revolution of the sun around the Earth.

Tags

NGSS.MS-ESS1-1

What results from the movement of the moon around Earth?

• the seasons

• night and day

• high and low tides

• phases of the moon

Tags

NGSS.MS-ESS1-1

Rotation is...

• the circular motion of one object around a second object.

• the movement, or spinning, of an object around a fixed point or its axis.

• staying in one spot.

• falling downward towards the center of Earth.

Revolution is...

• the circular motion of one object around a second object.

• the movement, or spinning, of an object around a fixed point or its axis.

• staying in one spot.

• falling downward towards the center of Earth.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4