Science worksheet designed to test students' knowledge on energy definitions and the classification of various power sources.
Science and Energy worksheet with questions on renewable and non-renewable energy sources and definitions.
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Step-by-step solution for: Sources of Energy - Worksheet | Printable and Distance Learning
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Show Answer Key & Explanations
Step-by-step solution for: Sources of Energy - Worksheet | Printable and Distance Learning
It looks like you've uploaded a worksheet titled "Sources of Energy (Worksheet)", which contains several questions related to energy sources. Since I can't view images directly, I’ll help you solve the problems based on the text you've provided.
Let’s go through each question one by one and solve them with explanations.
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a) _______ is the ability to do work.
✔ Answer: *Energy*
👉 Explanation: Energy is defined as the capacity or ability to do work.
b) _______ is the rate of use of energy.
✔ Answer: *Power*
👉 Explanation: Power is the rate at which energy is used or transferred. It is measured in watts (W).
c) Energy cannot be created or destroyed but it can be _______.
✔ Answer: *Transformed*
👉 Explanation: This is the Law of Conservation of Energy — energy can change forms (e.g., kinetic to potential), but it cannot be created or destroyed.
d) The energy from the sun is called _______.
✔ Answer: *Solar energy*
👉 Explanation: Solar energy is the radiant energy emitted by the Sun, harnessed using solar panels or solar thermal systems.
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Here are the images described (based on common representations):
1. Coal → 🔴 Non-renewable
👉 Coal is a fossil fuel formed over millions of years; once used up, it cannot be replenished quickly.
2. Sun → 🟢 Renewable
👉 Solar energy is continuously replenished by the Sun.
3. Hydropower → 🟢 Renewable
👉 Water cycles (rain, rivers) are naturally replenished.
4. Natural gas → 🔴 Non-renewable
👉 A fossil fuel, formed from ancient organic matter.
5. Geothermal → 🟢 Renewable
👉 Heat from Earth's core is continuously generated.
6. Nuclear → 🔴 Non-renewable
👉 Uses uranium or plutonium, which are finite resources (though sometimes classified separately due to long-term sustainability debates).
7. Wind → 🟢 Renewable
👉 Wind is caused by solar heating and atmospheric pressure differences — continuous.
8. Biomass → 🟢 Renewable
👉 Organic materials (like plants, wood, waste) that can be regrown.
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A) Geothermal
B) Biomass
C) Hydroelectric
D) Nuclear
✔ Answer: B) Biomass
👉 Explanation: Biomass energy comes from organic materials such as plant matter, agricultural waste, and animal manure. These materials decompose or are burned to produce energy.
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A) Geothermal
B) Hydroelectric
C) Solar
D) Nuclear
✔ Answer: A) Geothermal
👉 Explanation: Geothermal energy comes from the heat stored beneath the Earth’s surface, originating from the planet's formation and radioactive decay.
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| Question | Answer |
|--------|--------|
| Q1a | Energy |
| Q1b | Power |
| Q1c | Transformed |
| Q1d | Solar energy |
| Q2 | Coal – Non-renewable<br>Sun – Renewable<br>Hydropower – Renewable<br>Natural gas – Non-renewable<br>Geothermal – Renewable<br>Nuclear – Non-renewable<br>Wind – Renewable<br>Biomass – Renewable |
| Q3 | B) Biomass |
| Q4 | A) Geothermal |
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Let me know if you'd like this formatted into a printable answer sheet or need help understanding any concept further!
Let’s go through each question one by one and solve them with explanations.
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Q1. Fill in the blanks with suitable words.
a) _______ is the ability to do work.
✔ Answer: *Energy*
👉 Explanation: Energy is defined as the capacity or ability to do work.
b) _______ is the rate of use of energy.
✔ Answer: *Power*
👉 Explanation: Power is the rate at which energy is used or transferred. It is measured in watts (W).
c) Energy cannot be created or destroyed but it can be _______.
✔ Answer: *Transformed*
👉 Explanation: This is the Law of Conservation of Energy — energy can change forms (e.g., kinetic to potential), but it cannot be created or destroyed.
d) The energy from the sun is called _______.
✔ Answer: *Solar energy*
👉 Explanation: Solar energy is the radiant energy emitted by the Sun, harnessed using solar panels or solar thermal systems.
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Q2. Label the following energy sources as "Renewable" and "Non-renewable".
Here are the images described (based on common representations):
1. Coal → 🔴 Non-renewable
👉 Coal is a fossil fuel formed over millions of years; once used up, it cannot be replenished quickly.
2. Sun → 🟢 Renewable
👉 Solar energy is continuously replenished by the Sun.
3. Hydropower → 🟢 Renewable
👉 Water cycles (rain, rivers) are naturally replenished.
4. Natural gas → 🔴 Non-renewable
👉 A fossil fuel, formed from ancient organic matter.
5. Geothermal → 🟢 Renewable
👉 Heat from Earth's core is continuously generated.
6. Nuclear → 🔴 Non-renewable
👉 Uses uranium or plutonium, which are finite resources (though sometimes classified separately due to long-term sustainability debates).
7. Wind → 🟢 Renewable
👉 Wind is caused by solar heating and atmospheric pressure differences — continuous.
8. Biomass → 🟢 Renewable
👉 Organic materials (like plants, wood, waste) that can be regrown.
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Q3. Which of the following energy sources is produced from decaying plants?
A) Geothermal
B) Biomass
C) Hydroelectric
D) Nuclear
✔ Answer: B) Biomass
👉 Explanation: Biomass energy comes from organic materials such as plant matter, agricultural waste, and animal manure. These materials decompose or are burned to produce energy.
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Q4. Which of the following energy sources is produced by the heat stored within Earth?
A) Geothermal
B) Hydroelectric
C) Solar
D) Nuclear
✔ Answer: A) Geothermal
👉 Explanation: Geothermal energy comes from the heat stored beneath the Earth’s surface, originating from the planet's formation and radioactive decay.
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✔ Final Answers Summary:
| Question | Answer |
|--------|--------|
| Q1a | Energy |
| Q1b | Power |
| Q1c | Transformed |
| Q1d | Solar energy |
| Q2 | Coal – Non-renewable<br>Sun – Renewable<br>Hydropower – Renewable<br>Natural gas – Non-renewable<br>Geothermal – Renewable<br>Nuclear – Non-renewable<br>Wind – Renewable<br>Biomass – Renewable |
| Q3 | B) Biomass |
| Q4 | A) Geothermal |
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Let me know if you'd like this formatted into a printable answer sheet or need help understanding any concept further!
Parent Tip: Review the logic above to help your child master the concept of energy resources worksheet.
