Electrical energy changes

This task is about energy and energy transformation.

Question

a)  Which one of the following will change electrical energy into mechanical energy?
    • A light bulb

    • A neon tube

    • A battery powered motor

    • A dry-cell battery

Question

b)  When an electric hair dryer is used, electrical energy is being changed into three main types of energy.
     These are ...
    • heat, sound, and light energy.

    • light, kinetic, and magnetic energy.

    • kinetic, heat, and sound energy.

    • magnetic, sound, and heat energy.

Question

c)  When a washing machine is used, electrical energy is being changed into three main types of energy.
    These are ...
    • heat, potential, and light energy.

    • kinetic, heat, and sound energy.

    • kinetic, sound, and potential energy.

    • heat, wave, and sound energy.

Question

d)  When an electric kettle is used, the main energy change that occurs is the transformation of electrical energy into ...
    • heat energy.

    • mechanical energy.

    • magnetic energy.

    • wave energy.

Question 1Change answer

e)  When the kettle boils, other energy changes occur. 
     Name another form that the electrical energy is transformed into.  energy