Interactive worksheet teaching students about different types of energy through matching and real-world examples.

Let’s go step by step to match each definition with the correct type of energy, and then choose the right energy for each example.

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Part 1: Match definitions to types of energy

We have 7 types of energy on the left and 7 definitions on the right. Let’s pair them one by one.

1. “It’s stored inside matter and released by a chemical reaction.”
→ This is chemical energy. (Like in food or batteries — it’s stored until a reaction happens.)

2. “It comes from the nucleus of the atom.”
→ That’s nuclear energy. (Nucleus = center of atom → nuclear.)

3. “It’s produced by moving electric charges (electrons).”
→ That’s electrical energy. (Electrons moving = electricity.)

4. “It’s produced by the rise of temperature in an object.”
→ That’s thermal energy. (Heat = thermal.)

5. “It’s the sum of potential and kinetic energy, and it’s associated to movement and position.”
→ That’s mechanical energy. (Movement + position = mechanical — like a rolling ball or a raised hammer.)

6. “It’s transmitted through waves when there is a vibration.”
→ That’s sound energy. (Vibrations make sound waves.)

7. “It’s produced by sources of light.”
→ That’s luminous energy. (Light = luminous.)

So matching:

- sound energy → It’s transmitted through waves when there is a vibration.
- mechanical energy → It’s the sum of potential and kinetic energy...
- chemical energy → It’s stored inside matter and released by a chemical reaction.
- luminous energy → It’s produced by sources of light.
- thermal energy → It’s produced by the rise of temperature...
- nuclear energy → It comes from the nucleus of the atom.
- electrical energy → It’s produced by moving electric charges...

✔ All matched correctly.

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Part 2: Choose the correct type of energy for each example

Now let’s look at each real-life example and pick the right energy type.

1. Baking a cake in the oven, when the heat of the oven is transferred to the cake so that it cooks.
→ Heat = thermal energy.
*(Not chemical — even though baking involves chemistry, the question says “heat is transferred”, so it’s thermal.)*

2. During photosynthesis, plants use the energy from the Sun to obtain their nutrients.
→ Sun gives us light → luminous energy.
*(Plants convert luminous energy into chemical energy, but the question asks what energy they USE from the Sun — that’s light/luminous.)*

3. Uranium is used to produce electrical energy in a power plant.
→ Uranium is used in nuclear reactors → nuclear energy.
*(The process starts with nuclear energy to eventually make electricity.)*

4. When we digest food, we transform their energy to obtain nutrients.
→ Food stores energy chemically → chemical energy.
*(Digestion breaks down chemicals to release energy our body uses.)*

5. Lightning happens when electricity is released into the atmosphere.
→ Lightning is a giant spark of electricity → electrical energy.
*(Even though it makes sound and light, the main energy being released is electrical.)*

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Final Answer:

Part 1 Matching:
- sound energy → It’s transmitted through waves when there is a vibration.
- mechanical energy → It’s the sum of potential and kinetic energy, and it’s associated to movement and position.
- chemical energy → It’s stored inside matter and released by a chemical reaction.
- luminous energy → It’s produced by sources of light.
- thermal energy → It’s produced by the rise of temperature in an object.
- nuclear energy → It comes from the nucleus of the atom.
- electrical energy → It’s produced by moving electric charges (electrons).

Part 2 Examples:
- Baking a cake → thermal
- Photosynthesis → luminous
- Uranium in power plant → nuclear
- Digesting food → chemical
- Lightning → electrical