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Fuels & Energy
types of fuels and the types of energy.
| Question | Answer |
|---|---|
| What can you say other than heat energy? Name two. | thermal and internal energy |
| What happens when you heat a substance? | The particles receive more energy and are able to move faster |
| Electromagnetic waves is a radiation energy. They are split into 7 groups, according to wavelengths. All groups have different properties and uses. Name each group. | radio waves microwaves infrared visible light ultra-violet x-rays gamma rays |
| Which radiation energy can our eyes detect? | visible light |
| How are sound energy produced? | By vibrations or an object. Atoms and molecules move backwards and forwards in an orderly way |
| The electric charges are given _________ _________ by the battery and carry it to the working parts of a ____________ . This may be a _______, where the energy is changed into light and ________ | electrical energy, circuit. lamp, heat. |
| Any moving object has _________ energy. | kinetic energy |
| If an object is in a position aboce the surface of the Earth, it possesses stored energy called ____________ energy. Name 4 examples of objects with this stored energy. | potential energy. books on a shelf, child at the top of a slide, plate on the table, apple growing on a branch.. |
| We use energy in many ways. Cooking food, lighting homes, etc. Energy always changes from one form to another and some always changes into ________ energy. | heat energy |
| Give an example of wasted energy. | When turning on a lamp, it produces light and heat. The heat energy is wasted energy. |
| Many substances are burned to release their chemical energy to provide heat and light. They are called fuels. Name at least 3. | wood, coal, gas, charcoal, oil, diesel oil, petrol, natural gas, and wax |
| Stored chemical energy containts : __________ & _________. | food & fuels |
| Because supply of foossil fuels are limited, what other alternative sources of energy is there? Name at least 3. | geothermal energy, wind power, solar power, hydroelectricity |
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Created by:
hamizah
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