calculating power

• What is the definition of power?

  Rate at which energy is transferred
• What is the formula for power using energy transferred?

  Power = energy transferred / time
• What is the formula for power using work done?

  Power = work done / time
• What is the unit for power?

  Watt
• How is one watt defined?

  One Joule per second
• How do you calculate the power of Motor B transferring 500 Joules in 60 seconds?

  • Power = energy transferred / time
  • Power = 500 J / 60 s
  • Power = 8.3 W (to one decimal place)
• Where can you find more questions on calculating power?

  In the vision workbook
• What are the two methods to calculate power mentioned in the video?

  Using energy or work done