star and planet Flashcards

1
Q

What is a star?

A

a massive ball of gas

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2
Q

Name the nearest star to Earth

A

The sun

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3
Q

List the factors that affect the number of stars we can see

A

light pollution and humidity

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4
Q

What is a constellation? Give an example

A

a group of stars that appear close together in the sky.

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5
Q

Name 2 Dwarf planets

A

Ploto and Eris

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6
Q

How are planets different to stars?

A

Stars are bigger than planets.

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7
Q

Draw and label the planets in order

A

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

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8
Q

What has gravity?

A

Every object in the universe — stars, planets, moons,

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9
Q

Explain when gravity is stronger/weaker

A

Objects with a small mass have a weak gravitational force

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10
Q

Describe and draw a Neap and Spring tide (remember to label)

A

Neap: sun, moon ,earth
Spring: sun, earth / moon

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11
Q

What does orbit mean? Name 5 objects that orbit, making them a mix or natural and artificial.

A

planets, moons, asteroids, and artificial devices, star

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12
Q

How long does it take for the Earth to orbit around the sun?

A

24 hour 6 minutes and 9 second

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13
Q

Draw and label a planets orbit around the sun. What is this type of orbit called?

A

heliocentric orbit

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14
Q

Describe what happens during a lunar eclipse. Draw and label a diagram

A

A Lunar eclipse occurs when the Sun casts Earth’s shadow onto the Moon.

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15
Q

Describe what happens during a solar eclipse. Draw and label a diagram

A

the Moon passes between the Sun and Earth, completely blocking the face of the Sun.

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16
Q

How long dose it take for the Earth to orbit on it’s axis? What is this called?

A

rotation period 365

16
Q

Why does the Earth have seasons?

A

The earth’s spin axis is tilted with respect to its orbital plane. This is what causes the seasons.

16
Q

When would the Southern Hemisphere experience Summer?

A

December 21 or 22.

17
Q

Why do the different Hemispheres experience different season?

A

The earth’s spin axis is tilted with respect to its orbital plane