GCSE Physics - Power & Work Done - Equations | Calculations

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*** WHAT'S COVERED ***
1. The two definitions of power in physics.
* Power as the rate at which energy is transferred.
* Power as the rate at which work is done.
2. The key difference between 'energy transferred' and 'work done'.
* Illustrated with examples of charging a phone versus pushing a car.
3. The equations for calculating power.
* P = E / t (Power = Energy transferred / Time).
* P = W / t (Power = Work done / Time).
4. The standard units for power, energy, work, and time.
* Power in Watts (W), Energy/Work in Joules (J), and Time in seconds (s).
5. Worked examples for calculating power.
* Comparing the power of two different lamps.
* Calculating the energy transferred by a microwave by rearranging the formula.
* Calculating the power used to do work on an object.

*** CHAPTERS ***
0:00 Introduction
0:22 Power, Energy & Time
0:36 Power, Work Done & Time
1:21 Units for Power, Energy & Time
1:35 Worked Example 1 - Comparing Lamps
2:29 Worked Example 2 - Rearranging the Equation
3:27 Worked Example 3 - Calculating Power

*** PLAYLISTS ***









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