sound 1
When lights or sound waves bounce off of an object, surface or material.
Reflected
____to take in or soak up something such as energy in a natural or gradual way
Absorb
_______is a wide range of energy. Waves, and they all have different names. For example, radio waves are very large waves.
Electromagnetic Spectrum
Explain how light and sound technology can be harmful to the environment. Give 3 examples
Phone, MP3 Player, Street light, Television
Waste of resources, waste of energy/electricity
______is the ability of something or someone to do work
Energy
Artificial
man-made
How is white light created?
When all the colours are mixed together, it creates white light.
How are light and sound similar? Explain.
They are similar because they travel in waves and both a form of energy. Cannot be destroyed.
_____to make light change direction when it goes through at an angle
Refracted
refers to the frequency of a sound and is either high, medium or low.
Pitch
What is the smallest type of electromagnetic spectrum
Gamma rays
Explain translucent
Some light will be able to pass through an object. Example stained glass
The distance that a sound wave travels from its resting point to its peak
Amplitude
_____the group of colours that a ray of light can be separated into, including red, orange, yellow, green, blue, indigo, and violet
Spectrum
How do light and sound travel? What is specular reflection? Explain
They both travel in waves. Specular reflection is when the wave hits a smooth surface, it will bounce into the same direction.
Explain transparent
All light will be able to pass through an object. Example window
_____the distance from the peak of one wave to the peak of the consecutive wave.
Wavelength
It can bounce off at the same angle that it hit the surface, which is called a regular or specular reflection.
Specular Reflection
What are 3 properties of light and 3 properties of sound.
LIGHT - Diffraction, Refraction, Reflected
SOUND – Wavelength, Frequency, Amplitude
Explain opaque
no light will be able to pass through an object or Materials that block the path of light