Lesson Plan: P1.3.04

Hamble Lesson Observation Plan
Learning About
How do we calculate the energy transferred by an appliance?
Keywords:
  • Transfer: To convey or cause to pass from one place, person, or thing to another. (1)
  • Charge flow: The amount of electricity travelling through a circuit (1)
  • Appliance: a device or piece of equipment designed to perform a specific task. (1)
  • Work: Defined as the product of a force and the distance over which the force is applied. Measured in joules. (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
Work is done when charge flows in a circuit. When is 'work done' in terms of appliances?
The amount of energy transferred by electrical work can be calculated using the equation: energy transferred = power ? time Which equation is use to calculate the amount of energy transferred by electrical work?

Demo the equation for calculating work done in a circuit Students to apply.
Energy transferred can also be calculated by: energy transferred = charge flow ? potential difference In terms of charge flow and potential difference, how can energy transferred be calculated?

Investigate how the amount of energy transferred to an electrical appliance depends on the amount of time that it is on for by connecting the appliance to a joulemeter.
Students should be able to explain how the power of a circuit device is related to the energy transferred over a given time. How is the power of a circuit device related to the energy transferred over a given time?
Students should be able to describe, with examples, the relationship between the power ratings for domestic electrical appliances and the changes in stored energy when they are in use. What examples show the relationship between the power ratings for domestic electrical appliances and changes in stored energy when they are in use?
Links To the Big Ideas
ForcesParticlesEnergyCells