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German > Physics revision > Flashcards

Physics revision Flashcards

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German Verbs flashcards
1
Q

Which is the largest planet?

A

Jupiter

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2
Q

Which planet is a dwarf planet?

A

Pluto

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3
Q

Which are the 2 gas giants?

A

Saturn and jupiter

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4
Q

What does orbit mean?

A

To go around something.

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5
Q

How many planets are in the solar system?

A

8 planets

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6
Q

How do you work out the weight of objects?

A

Mass x gravitational force = weight

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7
Q

What is happening to the universe?

A

It’s expanding

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8
Q

What is the name of of a path one object follows around another due to gravity?

A

An orbit

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9
Q

What is weight?

A

Weight is a force caused by the pull of gravity acting on mass.

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10
Q

Is weight and mass the same?

A

NO

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11
Q

What happens when the earth rotates on its axis?

A

The side facing the sun is lit by the sun causing it to be day.

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12
Q

How long does it take the earth to orbit the sun once?

A

A year or 365 days

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13
Q

What causes seasons?

A

The earths tilt

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14
Q

How long does each rotation of earth on its axis take?

A

24 hours

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15
Q

What is the moon phase?

A

The shape of the visible part of the moon

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16
Q

When one half of the earth is in the sunlight what is the other half in?

A

The nighttime

17
Q

What is a solar eclipse?

A

When the moon passes between the sun and the earth casting a shadow over the earth.

18
Q

What happens to the moon’s appearance over time?

A

It is not easily seen or it changes shape somewhere in between a full circle ir a crescent.

19
Q

What makes sound?

A

Vibrations

20
Q

What describes how loud sounds are?

A

Volume

21
Q

What describes how high or low a sound is?

A

Pitch

22
Q

What describes the amount of vibrations per second?

A

Frequency

23
Q

What describes the size of vibrations?

A

Amplitude

24
Q

What is hertz?

A

The unit fir the amount of vibrations per second.

25
Q

Why does sound pass easier through solids?

A

Because the particles are closer together so it bounces off other particles to pass on vibrations.

26
Q

What happens when there is a short wavelength?

A

It makes a high pitched sound

27
Q

What happens when there is a high frequency?

A

It makes a high pitched sound

28
Q

What happens when there is a low frequency?

A

It makes a low pitched sound.

29
Q

What happens when there is a low amplitude?

A

It makes a quite sound

30
Q

What happens when there is a high amplitude?

A

It makes a loud sound

31
Q

What happens if there are big vibrations.

A

It makes a loud sound

32
Q

How do we see luminous things?

A

Light travels in a straight line directly into the eye

33
Q

How do we see non luminous things?

A

Light from the light source hits the object and some of this light is reflected into the eye

German (7 decks)

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