8.2 Space Exploration

Match the following

• rocket

• a machine that uses escaping gas to move

• thrust

• the force that causes a spacecraft to accelerate

• spin off

• satellite from which vehicles can be launched

  or scientific research can be conducted

• inertia

• the tendency of a moving object to keep moving

• space station

• a by-product derived from a previous product

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What does a rocket need in order to achieve the speed and direction to break away from the earth’s gravity?

• escape velocity

• orbital velocity

• geosynchronous orbit

• high Earth orbit

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Who developed the theory of rocket propulsion?

• Robert Goddard

• Isaac Newton

• Johannes Kepler

• Konstantin Tsiolkovsky

What is the purpose of a space probe?

• to transfer supplies to a space station

• to carry astronauts to new planets

• to gather data

• to stabilize the atmosphere of a planet

Satellites that need to maintain a constant location travel in which orbit?

• escape

• polar

• geosynchronous

• low Earth

What force is the result of gravity, velocity, and inertia working together?

• nuclear

• weak

• thrust

• centripetal

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Why was the space shuttle program started?

• to save money

• to prepare for Mars exporation

• to win the Space Race

• to land a man on the moon

If the Pioneer 10 space probe is no longer in service, why do scientists believe it is

going to travel in a straight line to reach Aldebaran?

• The data it sent to Earth showed a

  course change.

• The gravity on Aldebaran is pulling it.

• Its own inertia is propelling it.

• It was programmed to travel that

  distance.

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What type of force propels a rocket?

• thrust

• kinetic

• electromagnetic

• antigravitational

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Space research and exploration create new jobs.

• True

• False