Question

2.1.4 quiz: conservation of energy
question 7 of 10
you turn on your cars headlights while driving at night. what energy transformation is taking place?

a. light to electrical
b. light to chemical
c. thermal to light
d. electrical to light

Explanation:

When a car's headlights are turned on, the car's battery (or electrical system) provides electrical energy to the headlights. The headlights then convert this electrical energy into light energy (and some thermal energy, but the main transformation for producing light is electrical to light). Option A is incorrect as it's the reverse. Option B is incorrect as there's no chemical energy involved in the headlight operation here. Option C is incorrect as thermal energy isn't the input for headlight light production.

Answer:

D. Electrical to light