Forces, Acceleration, and Energy (HSC SSCE Physics): Flashcards
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Definition of power
Definition of power
Rate at which work is done or energy is transferred
Power formula (work and time)
Power formula (work and time)
SI unit of power
SI unit of power
Watt (W)
1 watt equals (in J s⁻¹)
1 watt equals (in J s⁻¹)
Energy formula using power and time
Energy formula using power and time
Power formula using force and velocity
Power formula using force and velocity
Energy-time graph gradient represents
Energy-time graph gradient represents
Power
Power-time graph area represents
Power-time graph area represents
Total energy transferred
Effect of longer time on power (same work done)
Effect of longer time on power (same work done)
Lower power
Why fuel use increases at higher speeds
Why fuel use increases at higher speeds
Air resistance increases, requiring more power to overcome it
