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Physics > Space - Yr 7 > Flashcards

Space - Yr 7 Flashcards

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1
Q

What is a planet?

A

An object that orbits a star

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2
Q

What is the star called in our solar system?

A

The sun

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3
Q

Name the planets in our Solar system

A

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

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4
Q

How many days are in a year?

A

365.25 days

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5
Q

How would you define a day?

A

A full rotation of the Earth on it’s axis

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6
Q

How do we get seasons?

A

The Earth is tilted on it’s axis pointing towards the Sun. When the Northern Hemisphere points to the sun, it experiences summer and it’s the opposite for the Southern Hemisphere. When the Southern Hemisphere points towards the sun, it’s flipped.

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7
Q

What is a galaxy

A

A large collection of stars

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8
Q

What galaxy are we in?

A

The Milky Way

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9
Q

What is a light year?

A

The distance light travels in a year

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10
Q

If my mass was 40kg on Earth what is my mass on Mars?

A

40kg/same

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11
Q

If my mass was 57kg on Mercury What would it be on Mars?

A

57kg/same

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12
Q

If my weight was 500 N on Earth would I weigh less or more on Jupiter

A

More

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13
Q

If my mass was 100 N on Saturn, would I weigh more or less on Venus?

A

Less

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14
Q

What causes years?

A

Gravitational force of the Sun on the Earth

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15
Q

What is a year

A

The time when the Earth does a complete orbit of the Sun

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16
Q

What are the four gaseous planets

A

Jupiter, Saturn, Uranus, Neptune

17
Q

Which four planets are rocky?

A

Earth, Mercury, Venus, Mars

18
Q

_______ are large objects that orbit the sun

A

Planets

19
Q

The force of _________ keeps the planets orbiting around the sun

A

Gravity

20
Q

Most of the planets have _______ that orbit around them

A

Moons

21
Q

________ and __________ are smaller objects that orbit around the sun

A

Asteroids, Comets

22
Q

What is Mass?

A

Amount of matter

23
Q

What is weight?

A

Gravitational force acting on mass

Physics (4 decks)

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