Light
What is a light wave?
Form of energy that allows us to see things around us
What is the frequency of a sound wave?
How many times a sound wave vibrates per second
What are digital signals?
Information or sound using digits, typically 0s and 1s
What is another name for Earthquake Waves?
Seismic Waves
Give an example of a Mechanical Wave
Sound Wave OR Earthquake Wave OR Water Wave
What two rays occur every time light reflects?
*NEED BOTH RAYS FOR FULL POINTS*
Reflected and Incident Ray
What is the connection between pitch and frequency with a guitar as example?
Short string leads to higher pitch with more frequent vibrations
Long string leads to lower pitch with less frequent vibrations
How do digital signals send and store information?
Binary Code (0's and 1's)
What are the two different types of these waves?
Body Waves and Surface Waves
Both waves in this category carry what from place to place?
ENERGY
The word for when light slows down and bends, which can make objects look "bent"
Refraction
What is amplitude?
Strength of a sound wave
What are analog signals?
continuous signals with full sound and limited data space
What type of waves produce the most damage during and after an Earthquake?
Surface Waves (Love and Rayleigh)
What is the Electromagnetic Spectrum?
The range of all possible electromagnetic waves ordered by their wavelength and frequency
How does light behave for all 4 types of objects?
Opaque, Transparent, Translucent, Reflective
*NEED TO DISCUSS ALL 4 FOR FULL POINTS*
Opaque: no light shines through
Transparent: all light shines through
Translucent: some light shines through
Reflective: light bounces back
What is the connection between amplitude and volume?
High volume = high amplitude
Low volume = low amplitude
Provide 2 examples! 1 Analog Signal AND 1 Digital Signal :)
Analog Signals: Landline phone, record player, cassette tape
Digital Signals: WIFI, smartphone, video games
How do these waves cause Earthquakes?
the vibrations from the movement of tectonic plates that travel through the Earth
What is main difference between the two waves in this category?
Mechanical Waves need a medium to travel and Electromagnetic Waves can travel through space or a medium
What are the names of two lens we learned about?
What is the job of each lens?
*NEED TO ANSWER BOTH QUESTIONS FOR FULL POINTS OR 250 EACH
1) Concave and Convex Lens
2) Make things smaller and make things bigger
What does a medium have to do for sound waves to be created?
Object must vibrate
Why are digital signals more reliable than analog signals? Give 2 examples!
Less distortion, errors easily fixed with binary code, can store lots of data
What is the main difference between Body and Surface waves?
Body Waves shake and move through the Earth's core
Surface Waves shake and move through the Earth's crust
What are TWO types of Electromagnetic Waves and their functions?
*NEED ALL INFO FOR FULL 500 POINTS*
UV: sterilization
Radio: communication
X-rays: medical imaging
Infrared: heat detect
Visible Light: allows people to see