Exploring Space

Front

What is a rocket?

Back

A device that expels gas in one direction to move in the opposite direction.

Front

What is thrust?

Back

The reacting force that propels a rocket forward.

Front

What is a space probe?

Back

A spacecraft that can carry scientific instruments to collect data, including visual images, but does not hold any space crews.

Front

What is microgravity?

Back

The condition of experiencing weightlessness in orbit.

Front

What is a space station?

Back

A large artificial satellite on which people can live and work for long periods.

Front

What is velocity?

Back

The speed of something in a given direction.

Front

What is an orbit?

Back

The curved path of an object around a star, planet, or moon.

Front

What is escape velocity?

Back

The minimum speed needed for an object to break free from the gravitational attraction of a celestial body.

Front

What is a satellite?

Back

An object that orbits a planet or star.

Front

What is a rover?

Back

A vehicle designed to explore the surface of a planet or moon.