Lucas plugs a lamp into the wall. The light bulb in the lamp turns on. What kind of energy transformation is this?

Question

A.
Light energy is transformed into mechanical and heat energy.
B.
Electrical energy is transformed into mechanical and heat energy.
C.
Electrical energy is transformed into light and heat energy.
D.
Light energy is transformed into electrical and mechanical energy.

Answer 1

The correct answer is C. Electrical energy is transformed into light and heat energy.

When Lucas plugs in the lamp and it turns on, the electrical energy from the wall is converted into light energy (from the bulb) as well as heat energy (as the bulb may heat up while it is on).