Transformation of Energy Practice Exercise 1

A small shopping center near River Nzoia wants electricity to run fridges and lights for shops. Explain two ways they can solve this problem using renewable energy. (2 marks)

A small shopping center near River Nzoia wants electricity to run fridges and lights for shops. Explain two ways they can solve this problem using renewable energy. (2 marks)

A small shopping center near River Nzoia wants electricity to run fridges and lights for shops. Explain two ways they can solve this problem using renewable energy. (2 marks)

A student uses headphones at full volume for a long time. What is the risk, and how can it be avoided?  (1mark)

A student uses headphones at full volume for a long time. What is the risk, and how can it be avoided?  (1mark)

A student uses headphones at full volume for a long time. What is the risk, and how can it be avoided?  (1mark)

Musa’s family experiences a blackout at night. They do not have electricity or solar lamps. What non-renewable energy source can they use for lighting, and why is it not a long-term solution?  (2 marks)

Musa’s family experiences a blackout at night. They do not have electricity or solar lamps. What non-renewable energy source can they use for lighting, and why is it not a long-term solution?  (2 marks)

Musa’s family experiences a blackout at night. They do not have electricity or solar lamps. What non-renewable energy source can they use for lighting, and why is it not a long-term solution?  (2 marks)

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)

Study the diagram of Thomson’s Falls in Nyahururu and identify two forms of energy in this scene and explain where each is observed. (2 marks)

Study the diagram of Thomson’s Falls in Nyahururu and identify two forms of energy in this scene and explain where each is observed. (2 marks)

Study the diagram of Thomson’s Falls in Nyahururu and identify two forms of energy in this scene and explain where each is observed. (2 marks)

At Turkwel Hydroelectric Power Station, water stored in a dam is used to produce electricity. Describe the energy transformations that take place.  (1mark)

At Turkwel Hydroelectric Power Station, water stored in a dam is used to produce electricity. Describe the energy transformations that take place.  (1mark)

At Turkwel Hydroelectric Power Station, water stored in a dam is used to produce electricity. Describe the energy transformations that take place.  (1mark)

At Turkwel Hydroelectric Power Station, water stored in a dam is used to produce electricity. Describe the energy transformations that take place.  (1mark)

Living near an industrial area in Thika, you hear a continuous emergency siren from a nearby factory. What is the safest immediate response?

Living near an industrial area in Thika, you hear a continuous emergency siren from a nearby factory. What is the safest immediate response?  (1mark)

Living near an industrial area in Thika, you hear a continuous emergency siren from a nearby factory. What is the safest immediate response?  (1mark)

Living near an industrial area in Thika, you hear a continuous emergency siren from a nearby factory. What is the safest immediate response?  (1mark)

Why is the Sun important for plant growth?

Why is the Sun important for plant growth? (1 mark)

Why is the Sun important for plant growth? (1 mark)

Why is the Sun important for plant growth? (1 mark)

A wind farm in Loiyangalani suddenly produces less power, even though the wind speed remains steady. What explains the drop in power output?

A wind farm in Loiyangalani suddenly produces less power, even though the wind speed remains steady. What explains the drop in power output?  (1 mark)

A wind farm in Loiyangalani suddenly produces less power, even though the wind speed remains steady. What explains the drop in power output?  (1 mark)

Which form of energy is used by a child flying a kite in the wind?

Which form of energy is used by a child flying a kite in the wind? (1 mark)

Which form of energy is used by a child flying a kite in the wind? (1 mark)

Which form of energy is used by a child flying a kite in the wind? (1 mark)

An automated irrigation system in Kitale runs on battery power. One day it stops working. What is the most likely reason based on the energy transformation concept?

An automated irrigation system in Kitale runs on battery power. One day it stops working. What is the most likely reason based on the energy transformation concept? (1 mark)

An automated irrigation system in Kitale runs on battery power. One day it stops working. What is the most likely reason based on the energy transformation concept? (1 mark)

Study the diagram below showing a simple electric circuit with two dry cells, a switch (S), and a bulb.What transformation of energy occurs when switch S is closed?

Study the diagram below showing a simple electric circuit with two dry cells, a switch (S), and a bulb. What transformation of energy occurs when switch S is closed? (1 mark)

Study the diagram below showing a simple electric circuit with two dry cells, a switch (S), and a bulb. What transformation of energy occurs when switch S is closed? (1 mark)

An LPG cylinder catches fire in a small café in Mombasa Old Town. Staff must act within seconds to stop the chemical energy from explosively transforming to heat and light.Which first action is MOST appropriate?

An LPG cylinder catches fire in a small café in Mombasa Old Town. Staff must act within seconds to stop the chemical energy from explosively transforming to heat and light. Which first action is MOST appropriate?  (1mark)

An LPG cylinder catches fire in a small café in Mombasa Old Town. Staff must act within seconds to stop the chemical energy from explosively transforming to heat and light. Which first action is MOST appropriate?  (1mark)

An LPG cylinder catches fire in a small café in Mombasa Old Town. Staff must act within seconds to stop the chemical energy from explosively transforming to heat and light. Which first action is MOST appropriate?  (1mark)

An LPG cylinder catches fire in a small café in Mombasa Old Town. Staff must act within seconds to stop the chemical energy from explosively transforming to heat and light. Which first action is MOST appropriate?  (1 mark)

Sarah notices her bicycle light gets brighter when she pedals faster. Why does this happen?

Sarah notices her bicycle light gets brighter when she pedals faster. Why does this happen? (1 mark)

Sarah notices her bicycle light gets brighter when she pedals faster. Why does this happen? (1 mark)

The diagram below shows a large rock resting at the top of a slope in picture A, and the same rock sliding downhill in picture B. Explain the transformation of energy from the moment the rock begins to slide to when it reaches the bottom. (1 mark)  

The diagram below shows a large rock resting at the top of a slope in picture A, and the same rock sliding downhill in picture B. Explain the transformation of energy from the moment the rock begins to slide to when it reaches the bottom. (1 mark)