Energy > electricity

Students make direct measurements of power in various electrical circuits using an energymeter, and use values of voltage and current to calculate power.

Electric current transfers energy from the battery or power station to a lamp.

The transfer of energy through an electric motor to potential energy of a load.

Calculating the energy transferred per second from a lamp.

Measuring how the light intensity of a lamp varies with input power.

Measuring the power input to a motor.

Comparing the power output of two motors.

Comparing the output power of two motors.

This is a test. I hope it works

Using the specific thermal capacity of water to check the reading of a voltmeter.