6.9C Energy Transformations

Which of these is an example of radiant energy being transformed into chemical energy?

• A glow stick lights up when broken.
• Water heated by the sun evaporates
• A plan makes food in the sunglight
• A battery causes a buzzer to vibrate

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

• Chemical to radiant
• Radiant to chemical
• Solar to thermal
• Radiant to electrical 

Which type of energy transformation occurs when a flashlight shines?

• Chemical to thermal to electrical
• Chemical to electrical to radiant
• Thermal to chemical to radiant
• Chemical to electrical to sound

The diagram shows a complete circuit with a battery and a buzzer making noise. The circuit works by transforming

• chemical energy to electrical to sound.
• electrical energy to thermal to radiant.
• sound energy to electrical to chemical.
• mechanical energy to electrical to sound.

The picture shows a microwave oven. Which form of energy is not involved in the energy transformation of the microwave?

• chemical
• light
• thermal
• sound

A television works by transforming electrical energy into what other kinds of energy?

• Radiant, thermal, and sound
• Thermal, chemical, and radiant
• Sound, mechanical, and electrical
• Radiant, chemical, and mechanical

A battery converts what type of energy to another?

• electrical to chemical
• electrical to thermal
• mechanical to electrical
• chemical to electrical

A hairdryer converts -- 

• electrical energy into chemical
• electrical energy into thermal
• chemical energy into mechanical
• thermal energy into mechanical

What energy transformation occurs when an oven is powered on?

• Electrical -->Thermal
• Thermal --> Electrical
• Chemical -->Electrical--> thermal
• Electrical --> chemical 

Which action in a science lab transforms electrical energy to thermal energy?

• Warming liquid in a test tube over a flame
• Using a hot plate to boil a beaker of water
• Growing plants on a windowsill
• Mixing chemicals