Space

Question 1

What is a moon?

Answer 1

A natural satellite that orbits any object (mostly planets) other than a star

Question 2

How many hours does it take the earth to rotate?

Answer 2

24 hours

Question 3

How long does it take the earth to orbit the sun

Answer 3

1 year / 365.25 days

Question 4

What type of orbit do the planet and the moon perform?

Answer 4

Elliptical

Question 5

What was the first model of the solar system called?

Answer 5

Aristotle’s Model (2300 years ago)

Question 6

What was the second solar system model called?

Answer 6

Ptolemy’s Model (2000 years ago)

Question 7

What was the third solar system model?

Answer 7

Copernicus Model (500 years ago)

He was the first person to put the sun at the centre of the solar system instead of the earth

Question 8

What is the most modern solar system model called?

Answer 8

Kepler’s Model

Question 9

What is the definition of a planet?

Answer 9

A celestial body moving in an elliptical orbit round a star

Question 10

What is the definition of a comet?

Answer 10

A celestial object consisting of a nucleus of ice and dust and, when near the sun, a tail of gas and dust point away from the sun.

Question 11

What is the definition of an asteroid?

Answer 11

A small rocky body orbiting the sun. Mostly found in the asteroid belt.

Question 12

What is mass measured in?

Answer 12

Kilograms

Question 13

What is weight measured in?

Answer 13

Newtons

Question 14

What is the word equation for weight?

Answer 14

Weight = Mass x Gravitational field strength

Question 15

It’s summer in the UK. Is the North Pole tilted towards or away from the sun?

Answer 15

Towards

Question 16

It is summer. Will the days be long or short?

Answer 16

Long

Question 17

It is summer. Will the sun be low or high in the sky?

Answer 17

High

Question 18

It is winter in South Africa. Will the sun feel very warm?

Answer 18

No

Question 19

Why will the sun not feel very warm?

Answer 19

Its rays are more spread out

Question 20

How long does it take the moon to orbit the earth?

Answer 20

28 days

Question 21

How long does it take the moon to rotate on its axis once?

Answer 21

28 days

Question 22

How long does it take for the phases to restart?

Answer 22

1 month

Question 23

What are the four phases called?

Answer 23

First quarter, full moon, last quarter, New moon

Question 24

When does a lunar eclipse occur?

Answer 24

When the moon is in the earth’s shadow

Question 25

What is the definition of an eclipse?

Answer 25

The movement of one solar system object into the path of another.

Question 26

What is a solar eclipse?

Answer 26

The moon blocks the light from the sun, meaning that a small part of earth is in the moons shadow

Question 27

What is a lunar eclipse?

Answer 27

The earth’s shadow completely or partially covers the moon.

Question 28

Why does the moon turn red during a lunar eclipse?

Answer 28

The red wavelengths around our planet are being bent by our atmosphere and hit the moon, making it appear red

Question 29

What is a galaxy?

Answer 29

A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

Question 30

What is our home galaxy called?

Answer 30

Milky Way

Question 31

Why do we use light years?

Answer 31

We use them to measure something that is too big to measure in metres or kilometres

Question 32

How wide is our galaxy?

Answer 32

105,700 light years across

Question 33

How thick is our galaxy?

Answer 33

1000 light years

Question 34

What is the closest star to the sun?

Answer 34

Proxima Centauri

Question 35

How long would it take humans to travel to Proxima Centauri?

Answer 35

Over 70,000 years (4.3 light years)