Power Physics Example 1

Follow the full solution, then compare it with the other examples linked below.

Example 1

easy
A motor does 6000 J6000 \text{ J} of work in 30 s30 \text{ s}. What is the power output?

Solution

  1. 1
    Use the power formula: P=WtP = \frac{W}{t}.
  2. 2
    Substitute the values: P=600030P = \frac{6000}{30}.
  3. 3
    P=200 WP = 200 \text{ W}

Answer

P=200 WP = 200 \text{ W}
Power is the rate of doing work or transferring energy. It tells us how quickly energy is used, not just how much.

About Power

The rate at which work is done or energy is transferred, measured in watts (joules per second).

Learn more about Power →

More Power Examples

Example 2 medium

A [formula] person runs up a [formula] staircase in [formula]. What is the power output? Use [formul

Example 3 easy

A [formula] light bulb is on for [formula]. How much energy does it use?

Example 4 medium

Two cranes each lift a [formula] load [formula]. Crane A takes [formula] and Crane B takes [formula]

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