GCSE Physics (9-1) - GCSE Physics - Power & Work Done - Equations | Calculations (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** 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 *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6 https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU #GCSE #Physics #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE