Applications of energy transformation Practice exercise 4

A family in Nyandarua uses an electric heater in winter. Explain the transformation of energy and suggest one way to make its use more efficient. (2marks)

A family in Nyandarua uses an electric heater in winter. Explain the transformation of energy and suggest one way to make its use more efficient. (2marks)

A family in Nyandarua uses an electric heater in winter. Explain the transformation of energy and suggest one way to make its use more efficient. (2marks)

In a coastal town, LED lights are installed along the beach to improve safety at night. Explain how the transformation of energy in these lights contributes to public safety, and compare it to older filament bulbs.  (2marks)

In a coastal town, LED lights are installed along the beach to improve safety at night. Explain how the transformation of energy in these lights contributes to public safety, and compare it to older filament bulbs.  (2marks)

In a coastal town, LED lights are installed along the beach to improve safety at night. Explain how the transformation of energy in these lights contributes to public safety, and compare it to older filament bulbs.  (2marks)

During a political rally in Kisumu, a moving coil microphone is used for speeches. Explain the energy transformations involved and why this technology is suitable for the event.  (2marks)

During a political rally in Kisumu, a moving coil microphone is used for speeches. Explain the energy transformations involved and why this technology is suitable for the event.  (2marks)

During a political rally in Kisumu, a moving coil microphone is used for speeches. Explain the energy transformations involved and why this technology is suitable for the event.  (2marks)

A remote health clinic in Turkana uses solar panels to power refrigerators for storing vaccines. Explain the series of energy transformations from sunlight to refrigeration.  (2marks)

A remote health clinic in Turkana uses solar panels to power refrigerators for storing vaccines. Explain the series of energy transformations from sunlight to refrigeration.  (2marks)

A remote health clinic in Turkana uses solar panels to power refrigerators for storing vaccines. Explain the series of energy transformations from sunlight to refrigeration.  (2 marks)

A school in Nairobi uses 100 electric bulbs in classrooms. Each bulb consumes 60W and runs for 6 hours daily. Suggest one way the school can reduce electricity costs while maintaining adequate lighting, and explain the energy transformation involved.  (2 marks)

A school in Nairobi uses 100 electric bulbs in classrooms. Each bulb consumes 60W and runs for 6 hours daily. Suggest one way the school can reduce electricity costs while maintaining adequate lighting, and explain the energy transformation involved.  (2 marks)

A school in Nairobi uses 100 electric bulbs in classrooms. Each bulb consumes 60W and runs for 6 hours daily. Suggest one way the school can reduce electricity costs while maintaining adequate lighting, and explain the energy transformation involved.  (2 marks)

At a music concert in Mombasa, the public address system runs on a generator. Describe the energy transformations from fuel in the generator to the music heard by the audience. (2marks)

At a music concert in Mombasa, the public address system runs on a generator. Describe the energy transformations from fuel in the generator to the music heard by the audience. (2marks)

At a music concert in Mombasa, the public address system runs on a generator. Describe the energy transformations from fuel in the generator to the music heard by the audience. (2marks)

A maize mill in Eldoret uses an electric motor to grind maize into flour. Explain the energy transformation process and why electric motors are preferred over manual grinding. (2 marks)

A maize mill in Eldoret uses an electric motor to grind maize into flour. Explain the energy transformation process and why electric motors are preferred over manual grinding. (2 marks)

A maize mill in Eldoret uses an electric motor to grind maize into flour. Explain the energy transformation process and why electric motors are preferred over manual grinding. (2 marks)

A construction site in Nairobi uses an electric drill to bore holes in metal beams. Explain the energy transformations and the advantage of using electric drills for heavy-duty work.  (2marks)

A construction site in Nairobi uses an electric drill to bore holes in metal beams. Explain the energy transformations and the advantage of using electric drills for heavy-duty work.  (2marks)

A construction site in Nairobi uses an electric drill to bore holes in metal beams. Explain the energy transformations and the advantage of using electric drills for heavy-duty work.  (2marks)

A construction site in Nairobi uses an electric drill to bore holes in metal beams. Explain the energy transformations and the advantage of using electric drills for heavy-duty work.  (2marks)

In Naivasha, geothermal energy is used to power greenhouses growing vegetables for export as shown below. Describe the energy transformations from the hot underground steam to the electrical energy used in the greenhouse lighting system. (2marks)

In Naivasha, geothermal energy is used to power greenhouses growing vegetables for export as shown below. Describe the energy transformations from the hot underground steam to the electrical energy used in the greenhouse lighting system. (2marks)

In Naivasha, geothermal energy is used to power greenhouses growing vegetables for export as shown below. Describe the energy transformations from the hot underground steam to the electrical energy used in the greenhouse lighting system. (2marks)

Fishermen in Lamu use electricity from a wind turbine to power cold storage units for their daily catch. Using the image below, explain the sequence of energy transformations from the moving wind to keeping the fish fresh.  (2marks)

Fishermen in Lamu use electricity from a wind turbine to power cold storage units for their daily catch. Using the image below, explain the sequence of energy transformations from the moving wind to keeping the fish fresh.  (2marks)

Fishermen in Lamu use electricity from a wind turbine to power cold storage units for their daily catch. Using the image below, explain the sequence of energy transformations from the moving wind to keeping the fish fresh.  (2 marks)