3.5 Power

    Cards (74)

    • The unit of power is Watts (W).

      True
    • Power can also be expressed using force and velocity
    • If a motor performs 1200 Joules of work in 4 seconds, what is its power output?
      300 W
    • What is the power output if a motor performs 1200 Joules of work in 4 seconds?
      300 W
    • Match the variable with its symbol:
      Power ↔️ P
      Work ↔️ W
      Energy ↔️ E
      Time ↔️ t
    • If a motor performs 1200 Joules of work in 4 seconds, what is its power output?
      300 W
    • Match the variable with its unit:
      Power ↔️ Watts (W)
      Work ↔️ Joules (J)
      Velocity ↔️ Meters per second (m/s)
      Force ↔️ Newtons (N)
    • In the power formula, what does 'W' represent?
      Work done
    • 1 Watt is equal to 1 Joule per second.

      True
    • F is force in Newtons
    • Match the variable with its unit:
      Power ↔️ Watts (W)
      Work ↔️ Joules (J)
      Force ↔️ Newtons (N)
      Velocity ↔️ m/s
    • What is the power output if a motor performs 1200 Joules of work in 4 seconds?
      300 Watts
    • 1 W = 1 J/s
    • What does power describe in terms of energy transfer?
      The rate
    • Arrange the steps to calculate power using work and time:
      1️⃣ Identify the work done in Joules
      2️⃣ Identify the time taken in seconds
      3️⃣ Divide the work done by the time taken
    • The formula for power is P = W/t
    • What is 1 Watt equivalent to?
      1 Joule per second
    • One Watt means one Joule of work is done per second.

      True
    • If a motor performs 1500 Joules of work in 5 seconds, its power output is 300 Watts
    • What is the unit for work or energy in power calculations?
      Joules
    • 1 Watt is equal to 1 Joule per second.

      True
    • Power is measured in Watts, where 1 Watt equals 1 Joule per second
    • Time in power calculations is measured in seconds.

      True
    • The formula for power is P = \frac{W}{t}</latex> or P=P =Et \frac{E}{t}

      True
    • What does 1 Watt equal in terms of Joules and seconds?
      1 Joule per second
    • Power is the rate at which work is done or energy is transferred
    • Match the variable with its symbol:
      Power ↔️ P
      Work ↔️ W
      Energy ↔️ E
      Time ↔️ t
    • In the formula P=P =Fv Fv, \( F \) represents force in Newtons
    • What is the symbol for power in physics?
      P
    • Power is measured in Watts.

      True
    • What does one Watt represent in terms of work and energy transfer?
      One Joule per second
    • Power is the rate at which work is done or energy is transferred.
      True
    • Power is measured in units of Watts
    • Time in power calculations is measured in seconds.

      True
    • In the power formula, the symbol \( P \) represents power
    • Match the variable with its unit in power calculations:
      Power ↔️ Watts
      Work ↔️ Joules
      Time ↔️ Seconds
    • Understanding power helps us appreciate how energy is used efficiently in various devices and activities.
      True
    • Power is the rate at which work is done or energy is transferred
    • What is the equivalent of 1 Watt in terms of Joules and seconds?
      1 J/s
    • Power is measured in Watts (W), which is equal to Joules per second.

      True
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