What is Sound?
What is light?
Light Cont.
More light..
Extra Credit
100
Which term best describes the form sound takes as it travels?
Waves
100
What form does light take when it travels?
Waves
100
How is laser light different then regular light?
It is focused light only in one direction and only one wavelength.
100
What is it called when light bends an object?
Refraction
100
What is the definition of the term Amplitude?
The amount of energy in a sound wave.
200
Give an example of a sound with low volume and low pitch?
Give an example of a sound with high volume low pitch?
A: Computer fan
B: A diesel truck
200
Light is a form of what?
Enegry
200
Name something in your home that uses lasers?
Playstation...
200
A rainbow is an example of reflection or refraction?
Both!
200
In the diagram, measuring from the horizontal midline to the top of the wave is the way to identify which of the sound’s characteristics?
its amplitude
300
True or False: Sound Travels through a solid faster than if travels through a liquid?
True
300
Traveling from its source how does light spread?
It spreads out in all directions, traveling in straight lines.
300
What do you call something that does not let light pass through?
Opaque
300
How can you use light to magnify objects?
Light passing through lenses to make things clearer. For example a telescope.
300
Name three light spectrums
Radio- low frequency and long waves
Microwave- Low Freq/long wave
Infrared- Low freq/ long wave, also known as night vision
Visible light- Med frequency and medium waves
Ultra Violet: High Frequency- Short waves
Xray: High freq- Very short wave
400
What is a sound wave?
A disturbance that transmits energy.
400
Does light need matter to transmit energy?
No. That is why light can reach the earth from space.
400
Name something in your home that is Transparent, and what does that mean?
Window. Light can go through it.
400
A magnifying glass is an example of what kind of lens? Convex or concave?
Convex- It focuses light, burning ants!
400
Which of the following is similar to a stretched section of a spring?
A: the part of a transverse wave called a trough.
B: a part of a compression wave where molecules spread apart
C: an area in a compression wave where molecules are tightly compressed
B: a part of a compression wave where molecules spread apart
500
What is the number of vibrations that occur in a unit of time called?
Frequency
500
A range of light waves organized by frequency and wavelength is called?
Electromagnetic Spectrum
500
Name two colors and tell us how much light they reflect?
Black- reflects nothing, White reflects all.
500
Describe how a convex lens works?
Tell us more
500
Describe how a concave lens works?
Do tell...