7L The Solar System And Beyond Flashcards

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1
Q

What does all life on earth depend on

A

The sun

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2
Q

Why do we have day and night

A

Because Ethel earth spins on an axis one part of the planet is facing away from the sun and therefore in night time

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3
Q

What is an orbit

A

The path a planet takes

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4
Q

The orbit of the earth is shaped like an

A

Ellipse

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5
Q

What is a year

A

How long a planet takes to travel around the sun once

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6
Q

How long is a earth year

A

365.25 days

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7
Q

Why do we have a leap year

A

Because an earth year is 365.25 days long we make a year 365 days long and every four years we add an extra day to February to make up for the extra time

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8
Q

Hoe long is a lunar month

A

29.5 days

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9
Q

What is an natural satellite

A

Something whic orbits a planet which is not man made . The moon for example only natural satellites of earth

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10
Q

What is a satellite

A

Something that orbits a planet

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11
Q

What do we mean when we say the moon has no atmosphere

A

It has no air no wind and no rain . It is devoid of life

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12
Q

What is a full moon

A

When can see all of the lit part of the earth

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13
Q

What is the new moon

A

When we can not see any of the lit part of the earth

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14
Q

What is a total eclipse

A

When the sun is totally blocked out

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15
Q

What is solar eclipse

A

People who stand in the shadow of the moon

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16
Q

What is a partial eclipse

A

When only a part of the sun is blocked out

17
Q

When the moon moves into the shadow of the earth it looks very dark . What is the name of this eclipse

A

Lunar eclipse

18
Q

Planets in the solar system including dwarf

A

8 planets names are mercury , Venus , Earth , mars , Jupiter , Saturn , Uranus and Neptune
3 dwarf planets are Ceres between mars and Jupiter
Pluto after Neptune
Eric’s after Pluto

19
Q

What is a star

A

Huge balls of gas that give out light and heat

20
Q

What is the sun

A

A star

21
Q

Why does the sun seem brighter than other stars

A

Cos the other stars are further away

22
Q

Measure distance in space

A

Light years

23
Q
Name order 
Galaxy 
Solar system 
Universe 
Stars
A

Stars and planets
Solar system
Galaxy
Universe

24
Q

Name of our galaxy

A

Milky Way

25
Q

What type of reactions inside stars make them give out light

A

Nuclear

26
Q

Weight formula

A

Mass multiplied by gravitational field strength

27
Q

Why are the days longer in summer in England

A

When it is summer in England the northern half of the hemisphere is tilted toward the sun so as the earth turns it the suns reach it for more of the day

28
Q

Why is it hotter in summer

A

Because the suns rays are spread over a smaller are of land the heat is concentrated land gets warmer