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Science > Science Exam Revision > Flashcards

Science Exam Revision Flashcards

0
Q

What is cohesion?

A

When water is attracted to water.

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1
Q

What is surface tension?

A

A ‘skin that forms around the surface of water.

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2
Q

What is adhesion?

A

What’re is attracted to other substances- things that cannot dissolve.

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3
Q

What is chromatography?

A

The separation of colours.

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4
Q

What is a force?

A

A push or pull of an object which can make it move or change shape.

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5
Q

What is a contact force?

A

When an object is in contact with another object.

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6
Q

What is a non-contact force?

A

A force at occurs without touching.

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7
Q

What are forces measured in?

A

Newtons.

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8
Q

What is a balanced force?

A

If two equal objects are applied to an object in opposite directions it will not move.

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9
Q

What is an unbalanced force?

A

If the force acting upon an object are unbalanced the object will start to move.

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10
Q

What is air resistance?

A

A contact force which makes it slow down through the air.

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11
Q

What is friction?

A

The force applied to the surface of an object when it moves against the surface of another object.

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12
Q

What is the centre of an atom?

A

The Nucleus.

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13
Q

What is a positive charge?

A

A proton.

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14
Q

What is a negative charge?

A

A neutron.

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15
Q

What is streamlining?

A

When you change the shape of an object to make it go faster.

16
Q

What is unhelpful friction?

A

When there is a lot of friction between moving parts, energy is lost as heat.

17
Q

What is buoyancy?

A

Is the upward push (force) on an object that is floating or submerged in a fluid. It acts in all liquids and gases.

18
Q

What is Biology the study of?

A

Living things.

19
Q

What is physics the study of?

A

How and why things happen.

20
Q

What is chemistry the study of?

A

The study of substances.

21
Q

What is geology?

A

Earth and how it changes.

22
Q

What is psychology the study of?

A

Mind and the behaviour.

23
Q

What is Astronomy the study of?

A

The heavens, the sun, planets, moon, stars, etc.

24
Q

What is gravity?

A

The force of attraction between any objects.

‘Pull’

25
Q

What is weight?

A

The measure of the pull of gravity on your body.

26
Q

What is Mass?

A

The total amount of material that makes up an object.

Measured in kg or gms.

All matter has mass.

27
Q

What is terminal velocity?

A

When air resistance = weight force.

Science (4 decks)

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