Forms of Energy Worksheet (Answers, Definition and Solved Examples)

There are many forms of energy – light energy, electrical energy, heat energy, sound energy, mechanical energy, chemical energy, nuclear or atomic energy, and more. All these forms of energy can be described as potential or kinetic energy. These different forms of energy are what makes things move, machines work and living things grow.  

Let us now look at each of these forms of energy and some examples of the types of energy to understand them better.

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Kinetic Energy | Forms of Energy Worksheet

All moving objects have kinetic energy. There is an energy associated with moving objects as they are capable of doing some work or causing a change. For example, a moving person, a speeding car, or a moving ball can, say, topple other things or move them! When water or wind is in motion, it has kinetic energy. People have successfully used this water and wind energy to produce electricity, which is used to run our factories, our machines, and all electrical appliances.

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5. Chemical Energy–

The energy stored in substances by virtue of their composition – atoms, and molecules is known as chemical energy. This energy is released in other forms after a chemical reaction. For example, the energy stored in food is chemical energy, which is converted into new compounds and into heat energy after digestion in our body. Chemical energy in wood is converted into heat and light energy upon burning. Other examples include biomass, coal, and chemical batteries.

Classification based on sources

Renewable energy –

The energy obtained from renewable sources like sunlight, wind, water, tides, waves, and geothermal heat is known as renewable energy. These sources are naturally replenished and hence, recommended.

Non-renewable energy –

The energy obtained from non-renewable sources cannot be easily readily replaced by natural means. Examples include fossil fuels like coal, petroleum, and natural gas.

Energy can neither be created nor destroyed. It can only be transformed from one form to another. For example, when you rub your hands to get warmth, kinetic energy is converted to thermal energy; windmills convert kinetic energy into electrical energy, burning of wood changes chemical energy into heat and light energy. Sun is the source of almost all energy on earth.

Check Point

1. Energy can neither be ________ nor _________.
2. When we burn a candle, chemical energy is converted into _______ and _______ energy.
3. Name any two renewable sources of energy.
4. When you drop a ball from a height, potential energy is converted into ________.
5. A pizza or a burger has _________ energy stored in it!

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Image Credits:

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