Fuels & Energy
types of fuels and the types of energy.
|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
|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.
|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|