Share CCNN 5º - Electricity, Sound and Light
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Where is electricity created or generated?
Power Plants
Why is electricity dangerous?
Electricity can easily move through water and our bodies are made up of mostly water.
What is an example of a generator?
A battery
What are conductive materials?
Materials that allow electrical currents to flow through them.
What are insulating materials?
Materials that do not allow electricity to move through them.
Give an example of a conductive material
Metals
What does a power switch do?
A power switch opens or closes the flow of electricity.
What device turns electric power into another type of energy?
A resistor
What four characteristics does sound have?
Duration, intensity, pitch, timbre
What type of energy is created when objects vibrate to produce waves?
Sound energy
What do sound waves travel fastest through?
Sound travels fastest through solids.
True or false, sound travels through solids.
True
What type of energy allows us to see?
Light energy
Give an example of a man-made source of light.
Torches, lightbulbs...
Give an example of a natural source of light.
Sunlight
What does transparent mean?
Transparent means that light goes through it and we can see through it clearly.
