Gravity And Space Flashcards

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0
Q

Which direction is down?

A

The down direction is the direction to the centre of the earth. This is different wherever you are in the world.

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1
Q

What causes weight?

A

It is caused by the gravitational pull to the centre of the earth and is measured in Newtons.

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2
Q

Now does gravity effect objects?

A

Gravity makes objects heavier by increasing or decreasing your weight Gravity does not effect your mass, but does effect how high you can jump.

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3
Q

How do you work out the weight of an object?

A

Multiply the mass by ten.

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4
Q

How do find out the mass of an object?

A

Divide the weight by ten.

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5
Q

Why is gravity different on other planets?

A

Gravity is different on other planets because their mass is different. This affects how much objects weigh. This is why on the moon you experience weightlessness.

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6
Q

Which planets are either side of the asteroid belt?

A

Mars and Jupiter

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7
Q

Anything that orbits a planet is called…

A

A satellite

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8
Q

Weight pulls a rocket down whereas…

A

Thrust pulls it up.

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9
Q

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

A

365.25 days

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10
Q

Gravity becomes _________ if two objects are further apart.

A

Weaker

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11
Q

The earth is the ____ planet from the sun.

A

3rd.

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12
Q

If you went to Jupiter, your weight would be ________

A

Greater than if you were on earth.

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13
Q

The further away a planet is from the sun ____ _________ it takes to orbit the sun.

A

The longer.

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14
Q

The earth has an _________ orbit around the sun.

A

Elliptical.

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15
Q

To find mass, times by

A

10

16
Q

The mass of something is…

A

The amount of substance or “matter” something contains.

17
Q

Weight is…

A

The force of gravity pulling on a mass.

18
Q

Gravity is measured in …

A

Newtons.

19
Q

Gravity is the force of …

A

Attraction between two masses.

20
Q

When is the force of gravity strongest?

A

When the objects have large masses

When they are closer together