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AS Physics > Equations > Flashcards

Equations Flashcards

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1
Q

What is the equation for Kinetic Energy?

A

Kinetic Energy = (1/2)(mass)(velocity)^2

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2
Q

What is the rotational equivalent of mass?

A

moment of inertia (I)

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3
Q

What is the rotational equivalent of velocity?

A

Rotational Speed (curly W)

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4
Q

What are the two definitions of work done?

A

The amount of energy converted from one form to another (work done = GPE lost), or, product of the force and distance traveled in the direction of the force (work done = force X distance)

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5
Q

what is the equation for electrical power (joule heating)?

A

Electrical Power = Current X Voltage

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6
Q

What is the definition of power?

A

The rate of change of energy.

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7
Q

What is the equation for power?

A

Power = (work done)/(time taken)

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8
Q

What is the definition of gravitational field strength (E)

A

Gravitational Field Strength (E) = Force/Mass

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9
Q

What is the rotational equivalent of distance?

A

Angle (theta)

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10
Q

What is the equation for the force due to a radial gravitational field?

A

Force = -GMM/(R^2)

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11
Q

What is the equation for centripetal force?

A

F=MV^2/R

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12
Q

What is Keplers third law?

A

T^2 is directly proportional to R^3

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13
Q

What is the equation linking C, Wavelength and Frequency

A

C = Frequency X Wavelengh

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14
Q

What is the law of reflection?

A

I = r

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15
Q

What is the law of refraction?

A

(n1)Sin(O1) = (n2)Sin(O2)

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16
Q

what is the equation for “n”?

A

n = speed of light in vacuum/speed of light in material.

17
Q

What is the equation for the critical angle?

A

(n1)Sin(critical angle) = 1

18
Q

What is the fundamental frequency of a Node Node or antinode antinode standing wave? (an open pipe)

A

f = V/2L

19
Q

What is the nth harmonic of a Node Node or antinode antinode standing wave? (an open pipe)

A

f = nV/2L

20
Q

What is the fundamental frequency of a Node Antinode standing wave? (a closed pipe)

A

f = V/4L

21
Q

What is the (2n-1)th harmonic of a Node Antinode standing wave? (a closed pipe)

A

f = (2n-1)V/4L

AS Physics (4 decks)

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