Energy Around Us
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Names two types of Energy
sound, movement, stored, light, heat
Give an example of something that release sound energy
muscial instruments, radios, televisions, sounds of an aeroplane taking off
What kind of energy is wind?
movement energy
What is a system?
A system is something that two or more parts that work together
What is the difference between input and output of energy?
Input: the energy that goes into a system to make it work Output: the energy that comes out of a system
Gives examples of light energy…
the sun, lamps
Energy can be stored. Explain how coal is stored energy? How can be the energy be transfered?
Coal is a source of stored energy because it made from plants that lived millions of years ago. The energy can be transferred to heat energy when burned.
What is the process called when energy goes from a source of energy to where it is needed?
Energy transfer
Explain the input and output of energy in a paraffin lamp
A paraffin lamp needs a fuel. The input of energy is the fuel which in this case is paraffin. The output of energy is the light that is produced by the burning of the paraffin.
Choose the answer that best fits the sentence When you give more input of energy, it provides (more or less) output of energy?
more
Think of a flow diagram: Input of energy–> appliance–>output of energy If the appliance is an iron what is the input and what is the output?
Input: electric energy output: heat
Think of a flow diagram: Input of energy–> appliance–>output of energy If the appliance is a person playing a drum…
input: movement energy (person hitting the drum) output: sound energy