ExpertEasy1 markShort Answer
AQA GCSE · Question 02.2 · Energy
Use the Physics Equations Sheet to answer questions 02.2 and 02.3.
Write down the equation which links energy (E), power (P) and time (t).
Use the Physics Equations Sheet to answer questions 02.2 and 02.3.
Write down the equation which links energy (E), power (P) and time (t).
How to approach this question
Locate the section on the Physics Equations Sheet related to energy or power. Find the equation that contains the symbols E, P, and t.
Full Answer
E = P t
The relationship between energy transferred (E), power (P), and time (t) is defined by the equation for power. Power is the rate at which energy is transferred or work is done. Mathematically, this is expressed as:
Power = Energy transferred / time
P = E / t
Rearranging this equation to make energy the subject gives:
Energy transferred = Power × time
E = P × t
Common mistakes
✗ Writing the equation incorrectly, e.g., E = P / t.
✗ Using the wrong symbols for the quantities.
Practice the full AQA GCSE Physics Higher Tier Paper 1
20 questions · hints · full answers · grading
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