Light Energy
How light travels
What are waves?
Which has more energy? A HIGH frequency wave or a LOW frequency wave?
What is high frequency?
When ALL light passes through an object, it is _____________
What is transparent?
The highest point in a wave
What is crest?
Uses a series of dots and dashes. Can use sound waves or light waves.
What is Morse Code?
Objects that produce light
What are light sources?
Which has LESS energy? A wave with a LARGE wavelength or a wave with a SMALL wavelength?
What is small wavelength?
When NO light passes through an object, it is ______________.
What is opaque?
The lowest point in a wave
What is trough?
QR Codes and Bar Codes both use patterns to store information. Which one is more secure?
What are QR Codes?
Light must________________ off an object to be seen if the object is NOT a light source
What is reflect?
What causes water waves?
a. wind
b. a disturbance (like a rock)
c. Earthquake or volcano
d. All of the above
What is D, All of the above?
SOME light passes through an object
What is translucent?
The distance from crest to crest or trough to trough
What is wavelength?
An array of black and white squares or pixels set in a grid that stores data for a machine to read, can be read using smartphones
What is a QR Code?
When light is reflected off an object into the eye, the eye______________ the light
What is absorbs?
As waves approach the shoreline, does the amplitude INCREASE or DECREASE?
What is increase?
A brick wall
What is opaque?
The distance from the baseline of a wave to the crest or trough is called
What is amplitude?
A special pattern made of black and white lines or shapes that stores information, read by a computer or scanner.
What is a Bar Code?
When our eyes detect light, it allows object to be____________ to us
What is visible?
True or false: Amplitude measures the distance from trough to crest.
What is false?
Frosted glass
What is translucent?
The time it takes two wave peaks to pass a single point
What is frequency?
A series of the numbers 0 and 1 used to create a pattern. Is the basic code for computers.
What is Binary Code?