word equation's

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what is the equation for WEIGHT?
weight= mass x gravitational field strenght (W= m g)
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what is the equation for WORK DONE?
work done= force x distance (along the line of action of the force) (W= F s)
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what is the equation for FORCE APPLIED TO A SPRING?
force applied to a spring= spring constant x extention (F= k e)
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what is the equation for MOMENT OF A FORCE?
moment of a force= force x distance (normal to direction of force) (M= F d)
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what is the equation for PRESSURE?
pressure= force normal to a surface ÷ area of that surface (p= f a)
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what is the equation for DISTANCE TRAVELLED?
distance travelled= speed x time (s= v t)
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what is the equation for ACCELERATION?
acceleration= change in velocity ÷ time taken (a= Δv t)
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what is the equation for RESULTANT FORCE?
resultant force= mass x acceleration (F= m a)
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what is the equation for KINETIC ENERGY?
kinetic energy= 0.5 x mass x (speed)² (Ek= 1/2m v²)
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what is the equation for GRAVITATIONAL POTENTIAL ENERGY?
gravitational potential energy= mass x gravitational field strength(g) x height (Ep= m g h)
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what is the equation for POWER?
power= energy transferred ÷ time (P= E ÷ t)
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what is the equation for POWER?
power= work done ÷ time (P= W ÷ t)
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what is the equation for EFFICIENCY?
efficiency= useful power output ÷ total input energy transfur OR efficiency= useful power output ÷ total power input
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what is the equation for WAVE SPEED?
wave speed= frequency x wavelength (v= ƒ x λ)
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what is the equation for CHARGE FLOW?
charge flow= current x time (Q= I t)
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what is the equation for POTENTIAL DIFFERENCE?
potenital difference= current x resistance (V= I R)
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what is the equation for POWER?
power= potential difference x current (P= I² R) OR power= (current)² x resistance (P= I² R)
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what is the equation for ENERGY TRANSFERRED?
energy transferred= power x time (E= P t) OR energy transferred= charge flow x potential difference (E= Q V)
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what is the equation for DENSITY?
density= mass ÷ volume (p= m ÷ v)
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Other cards in this set

Card 2

Front

what is the equation for WORK DONE?

Back

work done= force x distance (along the line of action of the force) (W= F s)

Card 3

Front

what is the equation for FORCE APPLIED TO A SPRING?

Back

Preview of the front of card 3

Card 4

Front

what is the equation for MOMENT OF A FORCE?

Back

Preview of the front of card 4

Card 5

Front

what is the equation for PRESSURE?

Back

Preview of the front of card 5
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