Power and Work Done
Cards (30)
- What is the main topic of today's video?
- How many definitions of power are discussed?
- What is the first definition of power?
- What is the equation for power based on energy transferred?
- What is the second definition of power?
- What is the equation for power based on work done?
- How is work done defined in this context?
- If you push a car down the road, what is the energy referred to as?
- How is electrical energy transferred from a plug socket described?
- What unit is power measured in?
- What units are energy transferred and work done measured in?
- What unit is time measured in?
- How do you compare the power of two lamps?
- How much energy does the left lamp transfer?
- How much time does the left lamp take to transfer energy?
- What is the power of the left lamp?
- How much energy does the right lamp transfer?
- How much time does the right lamp take to transfer energy?
- What is the power of the right lamp?
- What is the power rating of the microwave discussed?
- How long is the microwave on for in the example?
- How do you convert three minutes to seconds?
- How much energy is transferred by the microwave?
- How do you convert joules to kilojoules?
- What is the energy transferred in kilojoules from the microwave?
- How much work is done to push a car down the street?
- How long does it take to push the car?
- What is the power used to push the car?
- What are the key equations for power?
- What are the units for power, energy, and time?