1.2.2 Work and Power

• The formula for work done is W = Fd
• The formula for power is P = W/t
• Work done is calculated as the product of force and distance
• Work done is measured in joules, which are derived from newtons and meters
• Match the term with its unit:

  Power ↔️ Watts

  Work done ↔️ Joules

  Time ↔️ Seconds
• What is the unit of power?

  Watts
• The units of power are Watts because they represent Joules per second.
• The formula for work done is $Work \, done =$$Force \times Distance$
• What is distance measured in?

  Meters
• Why is the unit of power Watts?

  Joules per second
• Work done is measured in Joules
• Power is calculated using the formula Work/Time.
• What is the unit of measurement for work done?

  Joules
• Watts measure the rate of energy transfer or work done per unit of time.
• What is the definition of work done in physics?

  Energy transferred by force
• What is the definition of power in physics?

  Rate of energy transfer
• What is the relationship between work done and power?

  Power is work done per time
• Why are the units of work done in joules?

  Force in newtons times distance in meters
• If 50 J of work is done in 10 seconds, what is the power?

  5 W
• The formula for power is $Power =$$\frac{Work \, done}{Time}$
• The power formula allows us to determine the rate at which energy is being transferred or work is being done
• Work done is the energy transferred when a force moves an object a certain distance
• What is force measured in?

  Newtons
• Power is the rate at which work is done or energy is transferred
• What is the unit of measurement for power?

  Watts
• If a motor does 300 J of work in 6 seconds, what is its power?

  50 W
• Power is the rate of change of work done over time.
• If 50 J of work is done in 10 seconds, what is the power?

  5 W
• The units of work done are joules.
• The units of power are watts.
• The work done by a force of 10 N moving an object 5 m is 50 J.
• Power is measured in watts.
• Power is the rate at which work is done or energy is transferred
• Match the term with its unit:

  Work done ↔️ Joules

  Time ↔️ Seconds
• What does one Watt represent in terms of energy and time?

  1 Joule per second
• What is the unit of work done?

  Joules
• One Joule is equivalent to one Newton meter.
• Power measures how quickly energy is used.
• Time is measured in seconds.
• Match the concept with its definition and formula:

  Work Done (W) ↔️ Energy transferred when a force moves an object a certain distance ||| $Force \times Distance$

  Power (P) ↔️ The rate at which work is done ||| $\frac{Work \, done}{Time}$