Transformation of Energy Practice Exercise 1

Explain the dangers of driving in heavy fog without using headlights and propose safety measures to prevent accidents involving kinetic energy transformation as shown below. (2marks)

Explain the dangers of driving in heavy fog without using headlights and propose safety measures to prevent accidents involving kinetic energy transformation as shown below. (2marks)

Explain the dangers of driving in heavy fog without using headlights and propose safety measures to prevent accidents involving kinetic energy transformation as shown below. (2marks)

Explain the dangers of driving in heavy fog without using headlights and propose safety measures to prevent accidents involving kinetic energy transformation as shown below. (2marks)

Your family is frying chapati using a gas cooker. Describe the energy transformation involved.  (1mark)

Your family is frying chapati using a gas cooker. Describe the energy transformation involved.  (1mark)

Your family is frying chapati using a gas cooker. Describe the energy transformation involved.  (1mark)

Your grandmother boils water for tea using firewood. Explain the energy transformation taking place.  (1mark)

Your grandmother boils water for tea using firewood. Explain the energy transformation taking place.  (1mark)

Your grandmother boils water for tea using firewood. Explain the energy transformation taking place.  (1 mark)

A company uses the machine in the image below to extract oil for a nearby factory. Oil has become expensive, but the factory needs to continue operating. Propose an alternative source of energy for the factory and explain why this solution would be better in the long term.  (2 marks)

A company uses the machine in the image below to extract oil for a nearby factory. Oil has become expensive, but the factory needs to continue operating. Propose an alternative source of energy for the factory and explain why this solution would be better in the long term.  (2 marks)

A company uses the machine in the image below to extract oil for a nearby factory. Oil has become expensive, but the factory needs to continue operating. Propose an alternative source of energy for the factory and explain why this solution would be better in the long term.  (2 marks)

Water is stored behind a dam at a height. Explain how the stored water can be used to turn turbines and produce electricity. In your answer, describe how the potential energy of the water changes during this process. (3 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 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 community in Marsabit wants to pump water from a borehole 50 meters deep to supply 30 homes. They want to use solar energy because fuel is expensive. Explain two challenges they might face and how they can overcome them using renewable energy.  (4marks)

A community in Marsabit wants to pump water from a borehole 50 meters deep to supply 30 homes. They want to use solar energy because fuel is expensive. Explain two challenges they might face and how they can overcome them using renewable energy.  (4marks)

A community in Marsabit wants to pump water from a borehole 50 meters deep to supply 30 homes. They want to use solar energy because fuel is expensive. Explain two challenges they might face and how they can overcome them using renewable energy.  (4marks)

A community in Marsabit wants to pump water from a borehole 50 meters deep to supply 30 homes. They want to use solar energy because fuel is expensive. Explain two challenges they might face and how they can overcome them using renewable energy.  (4 marks)

A pupil observes a firefly glowing in Kakamega Forest. What form of energy is naturally produced by the firefly?

A pupil observes a firefly glowing in Kakamega Forest. What form of energy is naturally produced by the firefly? (1 mark)

A pupil observes a firefly glowing in Kakamega Forest. What form of energy is naturally produced by the firefly? (1 mark)

A pupil observes a firefly glowing in Kakamega Forest. What form of energy is naturally produced by the firefly? (1 mark)

A woman is preparing to light firewood to cook food in a rural kitchen.What is the main form of energy stored in the firewood before it is lit?

A woman is preparing to light firewood to cook food in a rural kitchen. What is the main form of energy stored in the firewood shown below before it is lit? (1 mark)

A woman is preparing to light firewood to cook food in a rural kitchen. What is the main form of energy stored in the firewood shown below before it is lit? (1 mark)

A woman is preparing to light firewood to cook food in a rural kitchen. What is the main form of energy stored in the firewood shown below before it is lit? (1 mark)

A hotel in Naivasha uses large LPG cylinders for cooking. What risk does relying heavily on LPG present?

A hotel in Naivasha uses large LPG cylinders for cooking. What risk does relying heavily on LPG present?  (1 mark)

A hotel in Naivasha uses large LPG cylinders for cooking. What risk does relying heavily on LPG present?  (1 mark)

A hotel in Naivasha uses large LPG cylinders for cooking. What risk does relying heavily on LPG present?  (1 mark)

A school in Bomet uses biogas from a digester to cook food. What is the original form of energy stored in biogas?

The diagram below shows a biogas digester. What is the original form of energy stored in biogas? (1 mark)

The diagram below shows a biogas digester. What is the original form of energy stored in biogas? (1 mark)

The diagram below shows a biogas digester. What is the original form of energy stored in biogas? (1 mark)

The diagram below shows a biogas digester. What is the original form of energy stored in biogas? (1 mark)

In a science lesson, learners observe how an electric iron works. The teacher asks them to identify the energy transformation involved. What should the students conclude?

In a science lesson, learners observe how an electric iron works. The teacher asks them to identify the energy transformation involved. What should the students conclude? (1 mark)

In a science lesson, learners observe how an electric iron works. The teacher asks them to identify the energy transformation involved. What should the students conclude? (1 mark)

Maya builds a water wheel generator for her science project. She tests it with slow-flowing water and fast-flowing water. Which design change would help her generate the most electricity?

Maya builds a water wheel generator for her science project. She tests it with slow-flowing water and fast-flowing water. Which design change would help her generate the most electricity? (1 mark)

Maya builds a water wheel generator for her science project. She tests it with slow-flowing water and fast-flowing water. Which design change would help her generate the most electricity? (1 mark)

Jake's remote-controlled car has a dead battery. He remembers that the car has a small generator inside. What should he do to get the car working again?

Jake's remote-controlled car has a dead battery. He remembers that the car has a small generator inside. What should he do to get the car working again? (1 mark)

Jake's remote-controlled car has a dead battery. He remembers that the car has a small generator inside. What should he do to get the car working again? (1 mark)

Jake's remote-controlled car has a dead battery. He remembers that the car has a small generator inside. What should he do to get the car working again? (1 mark)

After one hour revising on a bright tablet at home in Kisii, your eyes feel tired. Which immediate action best protects your eyes from bright light exposure?

After one hour revising on a bright tablet at home in Kisii, your eyes feel tired. Which immediate action best protects your eyes from bright light exposure?  (1mark)

After one hour revising on a bright tablet at home in Kisii, your eyes feel tired. Which immediate action best protects your eyes from bright light exposure?  (1mark)

After one hour revising on a bright tablet at home in Kisii, your eyes feel tired. Which immediate action best protects your eyes from bright light exposure?  (1 mark)