The Heating Effect

What do the small blue circles in the diagram represent?

__________ is the flow of electrons.

As electrons collide with metal ions, they produce __________.

Friction causes __________ energy to transfer from the electrons to the ions.

When the metal ions gain energy they __________ more, and the resistance increases.

Select the useful examples of the heating effect.

• Toaster

• Electric heater

• Gas oven

• Mobile phone

• Kettle

Explain how the heating effect is used in a toaster.