Year8_Physics_1
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19 Terms
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The height of a wave is called?
amplitude
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What is the point of a turning force acts around called?
pivot
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What can an unbalanced force cause?
change in direction, change in speed
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Speed
Distance over time
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What is renewable energy?
energy that derives from natural sources and can be replenished infinitely (if the conditions are right): HEP, wind, biomass, geothermal, solar
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Pressure
Force over area
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Force
mass x acceleration
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The directions the undulations of a tranverse wave travel at?
90 degrees
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Refraction
light bends
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Reflection
light turns at the same angle. angle of incidence = angle of reflection
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Why does a duck float?
upthrust
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voltage
The potential difference of two charges
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amperes
The flow of electrons
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resistance
how hard it is for the current to get through
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resistance formula
Volts over amps (ohms)
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Moment
the tendency for a body to move at an axis; FORMULA: distance x force
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parallel circuit
branches so that the current is divided; voltage is equal
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series circuit
current flows through the same wire; voltage decreases
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Ohm’s law
Voltage is directly proportional to amps
Note 
Flashcards (63)