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Flashcards by afiq abdillah, updated more than 1 year ago
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| Question | Answer |
| ENERGY AROUND YOU | By: Afiq Abdillah |
| What is energy? | It is the ability do work. |
| What is the use of energy? | Energy is needed to do everything from watching tv and drinking pepsi. |
| What is work? | It is the word given to the effects of using energy. |
| What is the measurement used to measure energy? | It is measured in a unit known as joules, but is usually measured in kilojoules. |
| What are the different forms of energy? | There are many forms of energy, such as kinetic energy, heat energy, sound energy, light energy, etc. |
| What is Kinetic energy? | It is the energy of movement. E.g. Riding a bicycle. |
| What is Heat energy? | Heat energy can come from the sun, flames, chemical reactions, electrical devices or even from a person or animal. It is produced as a wasted energy whenever work has been done. |
| What is Light energy? | Light energy comes from the sun, light globes, fires and animals such as glow-worms. |
| What is Sound energy? | Sound energy is the energy that air has when it is vibrating. E.g. Listening to an mp3. |
| What is Electrical energy? | Electrical energy comes from power stations, solar cells, batteries and sparks such as lightning. |
| What is potential energy? | It is energy that is stored in an object. |
| What are some examples of potential energy? | -Petrol in a car - Fat inside a person - A cup of water on the table |
| What is photosynthesis? | It is the process where plants use the energy from the sun with carbon dioxide and water to produce glucose and oxygen. |
| What are the different types of potential energy? | Gravitational Potential Energy Chemical Energy Elastic Potential Energy Nuclear Energy |
| What is Gravitational Potential Energy? | It is energy stored in an object when it is above the ground. E.g water flowing towards a waterfall. |
| What is chemical energy? | Energy that is stored in substances. E.g batteries. |
| What is elastic potential energy? | Energy stored in a stretched or squashed spring. E.g wind up car. |
| What is nuclear energy? | Energy stored inside the small particles that make up all matter. E.g nuclear energy. |
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