Questions and Answers
What is power defined as?
The rate of doing work, or the rate at which energy is converted.
What are the formulas for power?
Power = work done / time taken OR Power = energy converted / time taken.
What is the SI unit of power?
The watt.
Study Notes
Definition of Power
- Power is defined as the rate at which work is done or energy is converted.
- It reflects how quickly energy transfer occurs in a system.
Formulas for Power
- Power can be calculated using the formula:
- Power = work done / time taken
- Alternatively, it can be expressed as:
- Power = energy converted / time taken
- These formulas indicate how both work and energy relate to the time factor in calculating power.
SI Unit of Power
- The standard international (SI) unit for measuring power is the watt.
- One watt is equivalent to one joule per second, representing the transfer of one joule of energy in one second.
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Description
Test your knowledge of power in physics with these flashcards. Learn key definitions, formulas, and the SI unit associated with power. Perfect for students looking to reinforce their understanding of this fundamental concept.
