physics yr 11 Flashcards by Aydo 4x1

Q

specific heat

A

q=mcT

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Q

mechanical waves

A

waves that carry energy but not matter

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Q

vector quantities

A

velocity
displacement
acceleration
momentum
force

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Q

tension

A

m1a+m1g

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Q

momentum

A

m1u1+m2u2=m1v1+m2v2

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Q

quantities of a wave

A

v = f λ

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Q

newtons 3 laws

A

v^2=u^2+2as
v=u+at
s=ut+1/2at^2
F=ma

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Q

relative motion

A

Va-Vb
Vb+(-Va)

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Q

total internal reflection

A

sini/sinr=n2/n1

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Q

voltage

A

V=IR

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Q

frictional force

A

Ff=Us.Fw

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Q

coefficent of friction

A

μ = F/N

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Q

refraction

A

n1sin1=n2sin2

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Q

reflection

A

θr = θi

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Q

properties of a wave

A

wavelength
frequency
amplitude

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Q

kenetic energy

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A

K = 1/2 m v2

Q

potential energy

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A

U = mgh

Q

Period

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A

T=1/f

Q

power

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A

P=VI