Physics - Chapter 2 Flashcards

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1
Q

Rate of change of position with time

A

Velocity

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2
Q

Rate of change of velocity with time

A

Acceleration

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3
Q

Force on the body caused by the pull of gravity on it

A

Weight

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4
Q

Product of the mass of an object and its velocity

A

Momentum

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5
Q

Product of force and distance

A

Work

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6
Q

Quotient of work by time

A

Power

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7
Q

v=d/t

A

Velocity

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8
Q

v(av) = vi + vf / 2

A

Average velocity

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9
Q

a=vf - vi / t

A

Acceleration

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10
Q

F = ma

A

Force

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11
Q

Wt = mg

A

Weight

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12
Q

p = mv

A

Momentum

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13
Q

w = Fd

A

Work

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14
Q

P = w/t
P = Fd/t

A

Power

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15
Q

KE = 1/2mv^2

A

Kinetic energy

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16
Q

PE = mgh

A

Potential energy

17
Q

Unit of velocity

A

m/s

18
Q

Unit of acceleration

A

m/s^2

19
Q

Unit of force

A

Newton

20
Q

Unit of weight

A

Newton

21
Q

Unit of work

A

Joule

22
Q

Unit of power

A

Watt (W)

23
Q

Unit of potential energy

A

Joule

24
Q

Inertia - a body will remain at rest or will continue to move with constant velocity unless acted on by an external force

A

Newton’s first law

25
Q

Force - the force that acts on an object is equal to the mass of the object multiplied by the acceleration produced

A

Newton’s second law

26
Q

Action/reaction - for every action there is an equal and opposite reaction

A

Newton’s third law

27
Q

Based on the vibration of atoms of cesium

A

Second

28
Q

The velocity of light is constant and symbolized by:

A

c = 3 x 10^8 m/s

29
Q

The kinetic energy of the random motion of molecules

A

Heat

30
Q

1 kilogram = mass of 1000cm^3 of water at 4 degrees

A

Mass

31
Q

1 meter = distance travelled by light in 1/299 792 468s

A

Length