Investigating Space

What keeps the planets in orbit around the sun?

• gravity

• friction

• density

• distance

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The Sun is located at the center of the solar system and does not move. All planets revolve around the sun. Which best explains the motion of the Earth?

• There is no force acting upon Earth because there is no air in space

• The sun moves in an elliptical orbit and the sun's gravity pulls the Earth along

• Earth moves in an elliptical orbit around the sun due to the gravitational force from the sun onto Earth

• The gravity on Earth and the sun are the same so there is no force acting on Earth

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What causes Venus to travel in the curved path instead of going in a straight line?

• Due to the gravitational attraction between the sun and Venus

• Due to the gravitational attraction between mercury and venus

• Due to the gravitational attraction between the sun and mercury

• Due to the gravitational attraction between

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What is the force that makes Earth and the rest of the planets revolve around the Sun?

• Magnetism

• Gravity

• The Earth’s force

• The Sun’s force

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Which mission first successfully landed humans on the Moon?

• Apollo 11

• Voyager 1

• Mars Rover Perseverance

• Galileo

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How many planets are in our Solar System?

• 7

• 8

• 9

• 10

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The ISS is a station that allows humans to do research and train when they’re in space. How do we know they have energy in the station?

• They take batteries with them on their trip

• It’s energy is obtained from the rocket fuel

• Due to the solar panels

• Because they have a gym

Astronauts use space suits because

• It protects them from cosmic radiation

• It allows them to walk on the moon

• Protect the, from bacteria on the moon and space

• Because they want to look cool

What are the Jovian planets in order?

• Mercury, Earth, Mars, Venus

• Mercury, Venus, Earth, Mars

• Earth, Mars, Jupiter, Saturn

• Jupiter, Saturn, Uranus, Neptune

The bright star, Sun is located where in our solar system?

• the end

• the center

• the edge

• outside the system