Planets and Gravity Test Review

What is a planet?

• A star that emits light

• A celestial body moving in an elliptical orbit around a star

• A natural satellite orbiting a planet

• A comet traveling through space

List one characteristic of planets related to their physical or chemical properties.

• Temperature

• Physical/Chemical composition

• Brightness

• Orbit shape

Tags

NGSS.MS-PS1-1

Which of the following is a characteristic of the inner planets?

• They are gas giants

• They are closer together

• They have rings

• They are mostly made of ice

What type of planets are Mercury, Venus, Earth, and Mars?

• Outer planets

• Gas giants

• Dwarf planets

• Inner planets

What is the composition of the outer planets?

• Mostly rocky

• Mostly gas

• Mostly liquid

• Mostly metallic

What causes the planets to orbit in our solar system?

• The Sun's magnetism

• The Sun's gravity

• The Moon's gravity

• The Earth's gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The greater the mass of an object, the ______ the gravitational force it exerts on other objects around it.

• Lesser

• Same

• More

• Weaker

Tags

NGSS.MS-PS2-4

The closer two objects are, the ______ gravitational force they have.

• less

• same

• more

• zero

Tags

NGSS.HS-PS2-4

Planets orbit the Sun in a ______ direction.

• Clockwise

• Counter-clockwise

• Straight line

• Random

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

All planets spin on their ______, or rotate counter-clockwise except for Venus and Uranus.