Topic 7 Unit Test

What is gravity?

• A force of repulsion between objects

• A force that only affects objects with large masses

• A force of attraction between objects

• A force that acts only in outer space

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Why do parachuters fall toward Earth?

• Due to the force of air pressure

• Because they are pushed upward by the air

• Because of the force of Earth's gravity

• Due to the force of magnetism

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What causes the difference in day and night on Earth?

• Rotation of Earth on its axis

• Revolution of Earth around the moon

• Movement of stars in space

• Earth's tilt towards the sun

Tags

NGSS.MS-ESS1-1

Which of the following best describes Earth's axis?

• An imaginary line passing through the North Pole and South Pole

• A line connecting Earth and the moon

• The line dividing Earth into two equal halves

• A line perpendicular to Earth's orbit around the sun

What is the result of Earth's revolution around the sun?

• Change in the tilt of Earth's axis

• Change in the length of a day

• Change in the seasons

• Change in the rate of Earth's rotation

Tags

NGSS.MS-ESS1-1

Gravity is a force of attraction between ________ objects.

• two
• one

• three

• four

Tags

NGSS.MS-PS2-4

Earth makes one complete rotation about its axis approximately every ________.

• 24 hours
• 365 days

• 29.5 days

• 600 days

The side of Earth that faces away from the sun experiences ________.

• night
• Day

Tags

NGSS.MS-ESS1-1

The apparent movement of the sun across the sky is a result of Earth's ________.

• rotation
• revoulution

• spinning

Tags

NGSS.MS-ESS1-1

Earth's motion around the sun is called ________.

• revolution
• Rotation

• spiniing

Tags

NGSS.MS-ESS1-2