Core - Toipc 1.3 - Space Key words

Question 1

Red Shift

Answer 1

The light waves from a luminous object stretch (wave length increases) as it moves away from us.

The frequency of the waves decrease and the light appears red.

Question 2

Blue Shift

Answer 2

The light waves from a luminous object compress (wave length decreases) as it moves towards us.

The frequency of the waves increase and the light appears blue.

Question 3

Rover

Answer 3

A space probe that has wheels. It can land on a planet and collect samples from the surface.

Question 4

Lander

Answer 4

A space probe that has legs. It can land on a planet and collect samples from the surface.

Question 5

Orbiter

Answer 5

A space probe that goes into orbit around a planet. It can take pictures from above the planet.

Question 6

Galaxy

Answer 6

A collection of stars

Question 7

Light year

Answer 7

The distance that is travelled by a light wave in 1 year.

Question 8

Big Bang Theory

Answer 8

The universe began as a tiny point of energy 13.5 billion years ago. It then expanded rapidly and matter was created.

Question 9

CMBR

Answer 9

Cosmic Microwave Background Radiation. The energy left over from the Big Bang.