Energy Transformation

Which type of energy transformation occurs when a flashlight shines?

• chemical → thermal → electrical

• thermal → chemical → light

• chemical → electrical → light

• chemical → electrical → light

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical

• thermal → solar → electrical

• mechanical → sound → light

• electrical → thermal → light

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical → light → electrical

• light → electrical → chemical

• electrical → light → chemical

• chemical → electrical → light

Which kind of energy change occurs when a candle is burning?

• Solar to heat.

• Chemical to light.

• Light to electrical.

• Chemical to electrical.

Which of the following systems transforms chemical energy to light energy?

• fan

• compass

• light bulb

• candle