Free Printable Planet Orbits

Worksheets

Planet Orbits

Total questions: 20

Worksheet time: 11mins

Name

Class

Date

The closer a planet is to its host star:

the shorter the orbital period.

the longer the semi-major axis.

the colder the temperature.

the more eccentric the orbit.

Which of the following would increase the force of gravity on a planet?

Decreasing the mass of the star.

Decreasing the distance between the planet and star.

Decreasing the mass of the planet.

All of the above.

Within its orbit, as the planet gets closer to its host star:

the planet speeds up.

the force of gravity on the planet increases.

the temperature of the planet increases.

all of the above.

The force keeping an object in circular motion

Centripetal

Centrifugal

Acceleration

Velocity

The force keeping a planet in orbit around the sun is...

Friction

Tension

Gravity

weight

Planets orbit the Sun in a shape called a(n)

circle

ellipse

focus

perihelion

What has an eccentricity of zero

a straight line

a large ellipse

a circle

a small ellipse

A planet moves __________ when it is farthest from the sun.

faster

slower

Which diagram shows a planet with the least eccentric orbit?

10.

Two factors effecting the magnitude of the force of gravity between 2 objects are...

mass and distance

mass and matter

distance and weight

weight and mass

11.

As distance between two objects increase the pull of gravity

Increases

Decreases

Stays the same

12.

If an object has more _______, it will have more gravitational force.

mass

distance

13.

Which of the following is NOT a color of a star?

Yellow

Purple

Blue

Red

14.

How many planets are in our solar system?

15.

Which of the following is an inner planet?

Jupitar

Neptune

Venus

Uranus

16.

Which of the following is an outer planet?

Earth

Saturn

Mercury

Mars

17.

Which is the correct order of the inner planets?

Venus, Mars, Earth, Mercury

Mars, Venus, Earth, Mercury

Mercury, Venus, Earth, Mars

Earth, Venus, Mercury, Mars

18.

What do the inner planets have in common?

They do not orbit the sun

They are rocky planets

They are gas giants

They produce their own light

19.

What is the correct order of the outer planets?

Jupiter, Saturn, Uranus, Neptune

Neptune, Uranus, Jupiter, Saturn

Saturn, Uranus, Jupiter, Neptune

Jupiter, Neptune, Uranus, Saturn

20.

What do the outer planets have in common?