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Science > Motion + Newtons laws > Flashcards

Motion + Newtons laws Flashcards

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1
Q

Motion

A

an objects change in position over time when compared with a reference point

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2
Q

Speed

A

the rate at which an object moves

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3
Q

Velocity

A

the speed of an object in a particular direction.

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4
Q

Velocity formula

A

d/t plus direction

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5
Q

speed formula

A

d/t

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6
Q

speed si unit

A

m/s

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7
Q

velocity si unit

A

m/s^2

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8
Q

acceleration

A

the rate at which velocity changes

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9
Q

calculate acceleration

A

A= (Vf-Vi)/t

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10
Q

Force

A

a push or a pull

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11
Q

force si unit

A

Newtons

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12
Q

Inertia

A

Newtons first law

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13
Q

what is centrifugal

A

spin away from center

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14
Q

what is centripetal

A

Spin to center

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15
Q

friction

A

a force that opposes motion

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16
Q

Gravity

A

a force of attraction between objects which is due to their masses

17
Q

weight

A

a measure of the gravitational force exerted on an object

18
Q

weight si unit

A

Newtons

19
Q

Mass

A

the amount of matter in an object

20
Q

mass si unit

A

Grams

21
Q

Newtons 1st

A

an object at rest will stay at rest and an object in motion will stay in motion at a constant speed in a straight line unless the object is acted upon by an unbalanced force

22
Q

Newtons 2nd

A

the acceleration of an object depends on the mass of the object and the amount of force applied

23
Q

2nd law formula

A

F=ma

24
Q

Newtons 3rd

A

whenever one object exerts a force on a second object the second object exerts an equal and opposite force on the first

25
Q

Momentum

A

a property of a moving object that depends on the mass and velocity

26
Q

momentum formula

A

P=mv

27
Q

Law of conservation of momentum

A

anytime two or more objects interact, they may exchange momentum, but the total amount of momentum stays the same

Science (10 decks)

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