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year 9 science > my bike > Flashcards

my bike Flashcards

1
Q

acceleration

A

change in velocity / time

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2
Q

attract

A

to draw itself to something

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3
Q

balanced forces

A

when to forces acting on an object are equal

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4
Q

deceleration

A

an object slowing down

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5
Q

distance

A

how far/long and object is/goes

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6
Q

energy

A

ability to do work

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7
Q

electrostatic force

A

attracts oppositely charged particles

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8
Q

force

A

a force is a pull or push on an object

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9
Q

force diagram

A

its a diagram showing forces acting on an object

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10
Q

force field

A

a barrier made up of energy to protect someone or something.

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11
Q

friction force

A

friction is what happens when to forces rub together

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12
Q

gradient

A

is the rate at which a mountain gets steeper

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13
Q

gravity

A

a force that tries to bring forces down

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14
Q

lubricant

A

A substance, such as grease or oil, that reduces friction when applied as a surface coating to moving parts.

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15
Q

magnetism

A

a force pulled together by a magnetic field

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16
Q

mass

A

A measure of how much matter is in an object

17
Q

Newton

A

metric unit of force also used as a unit of weight

18
Q

North pole

A

Geography it is the end of the earth’s axis of rotation, marking the northernmost point on the earth.

19
Q

reaction time

A

Reaction time is the amount of time it takes to respond

20
Q

repel

A

two things repel each other, they push each other away with an electrical force

21
Q

S.I. units

A

The International System of Units

22
Q

South pole

A

The spot on the Earth toward which a compass needle will point

23
Q

speed

A

is something that is fast/quick

24
Q

ticker timer

A

an object just to measure time

25
Q

time

A

a way to measure time

26
Q

unbalanced force

A

When balanced forces act on an object at rest, the object will not move

27
Q

velocity

A

is a speed

year 9 science (1 decks)

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