Energy transformation

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light

• Electrical to light

• Electrical to chemical

• 
  

  Electrical to light

  Chemical to electrical

What energy transformations take place when a battery-operated radio (radio chạy bằng pin) is in use?

• Electrical to chemical to light

• Chemical to electrical to sound

• Sound to chemical to mechanical

• Light to electrical to thermal

What energy transformation occurs when a solar panel converts sunlight into electricity?

• Chemical to thermal

• Light to electrical

• Electrical to mechanical

• Thermal to electrical

During the operation of a wind turbine, which energy transformation takes place?

• Mechanical to electrical

• Chemical to mechanical

• Light to mechanical

• Electrical to thermal

What type of energy transformation happens in a toaster when it is heating bread?

• Chemical to electrical

• Thermal to light

• Electrical to thermal

• Mechanical to electrical

What energy transformation occurs in a hydroelectric power plant when water flows through turbines?

• Mechanical to electrical

• Chemical to electrical

• Thermal to mechanical

• Electrical to chemical

When a microwave oven is heating food, what type of energy transformation is taking place?

• Chemical to electrical

• Light to thermal

• Electrical to thermal

• Thermal to mechanical

What energy transformation happens when a wind-up toy is released and starts moving?

• Chemical to mechanical

• Mechanical to electrical

• Electrical to mechanical

• Potential to kinetic

What energy transformation occurs when a battery is charging?

• Thermal to electrical

• Chemical to electrical

• Electrical to chemical

• Mechanical to electrical

During the process of photosynthesis, what type of energy transformation takes place?

• Electrical to light

• Mechanical to chemical

• Chemical to thermal

• Light to chemical