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2 cards from this section. Quick, good the night before a test.
What is the formula for power?
Consider the relationship between work and time.
What is 1 watt equivalent to?
Think about how we measure energy consumption over time.
What is the formula for calculating power?
Focus on what power measures.
True or False: Horsepower is greater than a watt.
Think about common units of measurement.
An electric motor runs at 1500 watts for 2 hours. How much energy does it use in joules?
Don’t forget to convert hours to seconds.
Two machines perform the same amount of work, but one does it in half the time of the other. If the slower machine has a power of 500 watts, what would be the power of the faster machine?
Consider how time affects power.
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