Demonstration: An electric current transfers energy.

Practical Activity 14-16

Demonstration: Simple demonstrations to stimulate discussion about the different ways in which energy can be stored...

Practical Activity 14-16

Demonstration: The simple pendulum used as a stimulus to discuss changes in the ways that energy is stored.

Practical Activity 14-16

When an electric current passes through a long, hollow coil of wire there will be a strong magnetic field inside the coil and...

Teaching Guidance 14-16

Many textbooks and teaching schemes talk of ‘transforming’ energy, or of ‘converting energy from one form to another’. This is...

Teaching Guidance 14-16

Here you can show that there are such things as compensated circuits: that is, two circuits where the character of the...

Classroom Activity 14-16

In this activity the power input to the wind stream driving a wind turbine is compared with the power delivered to an external...

Classroom Activity 14-16

This is an interactive teacher demonstration that can be used to explore and to get students talking about various aspects of...

Classroom Activity 14-16

Use this set-up to introduce the motor effect: a motor's spinning comes about from the interaction between the current in a...

Classroom Activity 14-16

The energy shifted every second in this circuit depends on both the current and the potential difference. In this simple...

Physics Narrative 14-16

Batteries are just about everywhere. Expensive, portable power is something that we are prepared to pay for. Mobile phones...

Physics Narrative 14-16

Controlling the rate at which energy is shifting (the power) has been, and remains, a central concern of technology. Directing...

Physics Narrative 14-16