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Physics IGSCE > EQUATIONS > Flashcards

EQUATIONS Flashcards

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1
Q

How is Acceleration calculated?

A

Final Velocity-Initial Velocity (change in velocity) / time

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2
Q

How is Density calculated?

A

Mass of object / Volume of solvent

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3
Q

★How is Speed calculated?

A

Distance / Time

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4
Q

How is momentum calculated?

A

mass (kg) x velocity (m/s)

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5
Q

How is the resultant force calculated?

A

change in momentum : change in time

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6
Q

How is impulse calculated?

A

force (N) x change in time (s)

impulse=change in momentum

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7
Q

★How is efficiency calculated?

A

useful energy output : total energy input x 100

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8
Q

★How is the gravitational potential energy calculated (GPE)?

A

mass x gravity x height

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9
Q

★How is the Kinetic energy calculated?

A

(mass : 2) x (velocity²)

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10
Q

★GPE at the top = …

A

KE at the bottom

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11
Q

★What is the equation for pressure and volume?

A

P₁V₁ = P₂V₂

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12
Q

★How is work calculated?

A

force (N) x distance (m)
or △energy

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13
Q

★How is power calculated?

A

△energy
౼౼౼౼౼౼
time

 or
 
 work
 ౼౼౼౼
 time
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14
Q

★How is specific heat capacity calculated?

A

specific heat capacity (J/Kg ºC) =

        energy required (J)
౼౼౼౼౼౼౼౼౼౼౼౼౼౼౼౼౼౼౼   mass (Kg) x temp. increase (ºC)
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15
Q

★How do you convert between Kelvin and Celcius?

A

Kelvin = Celcius + 273.15
Celcius= Kelvin - 273.15

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16
Q

How is weight calculated?

A

mass * gravity

17
Q

How is gravity and acceleration of free fall calculated?

A

weight / mass???? mr. wides didn’t teach us…

18
Q

How is moment of a force calculated?

A

force * perpendicular distance from pivot

19
Q

How is spring constant calculated?

A

force / unit extension

20
Q

How is pressure calculated?

A

force / area

21
Q

How is change in pressure calculated?

A

density * acceleration * depth

22
Q

How is the refractive index calculated?

A

n = sin i / sin r

23
Q

How is the critical angle calculated?

A

n = 1/sin c

24
Q

How is wave speed calculated?

A

frequency * wavelength

25
Q

How is frequency calculated?

A

1 / period

26
Q

How is period calculated?

A

1 / frequency

Physics IGSCE (7 decks)

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