Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
33 Cards in this Set
- Front
- Back
|
What is a wave crest?
|
The highest point in a wave
|
|
|
What is the trough?
|
The lowest point in a wave
|
|
|
What is wavelength?
|
The distance from one point on a wave to the same point on the nearest wave; measured in lambda
|
|
|
What is frequency?
|
In a wave, the number of repetitive motions, or vibrations, that occur in a given time, measured in cycles per second or hertz (Hz)
|
|
|
What is amplitude?
|
The height of a wave crest or depth of a wave trough as measured from the wave's rest position; a measure of energy carried by the wave
|
|
|
What is a transverse wave?
|
A wave in which matter in the medium moves at right angles to the wave that the wave travels
|
|
|
What is a compression wave?
|
A wave in which matter in the medium moves back and forth along the same direction that the wave travels
|
|
|
Does a water wave carry water along with it?
|
No because it is only the energy being transferred and not the water; the water moves up and down
|
|
|
How do you calculate frequency?
|
Frequency = cycles divided by seconds
|
|
|
What does ROYGBIV stand for?
|
Red, orange, yellow, green, blue, indigo and violet
|
|
|
How is frequency related to wavelength?
|
Frequency increases, wave length decreases
Frequency decreases, wave length increases |
|
|
What is the wave model of light?
|
A model of light behavior that represents light traveling as a wave
|
|
|
What is the order of the visible spectrum of colors from highest wavelength to lowest wavelength?
|
ROYGBIV
|
|
|
What is reflection?
|
The visible effect when light strikes an object and bounces off
|
|
|
What is refraction?
|
The bending or changing direction of a wave as it changes speed in moving from one material to the other
|
|
|
Why does a red apple appear to be red?
|
This is because the apple is only reflecting red light so that it is only what you can see
|
|
|
Why does a wet spot appear dark?
|
This is because not as much light is being reflected so the spot does not appear as bright
|
|
|
What are the three colors of light?
|
Red, blue and green
|
|
|
What happens when you add all additive primary colors?
|
You create white light
|
|
|
What happens when you add two additive primary colors?
|
Blue and green: Cyan
Red and green: Yellow Red and blue: Magenta |
|
|
What would happen if you added cyan and magenta together?
|
White with a tinge of blue
|
|
|
What would happen if you held a green transparent covering over a red apple?
|
The apple would look dark because the covering lets only green light through and the apple absorbs it
|
|
|
Why can you see all light colors when you shine white light through a prism?
|
This is because all colors refract at a different angle so that you can see all of them
|
|
|
What is electromagnetic radiation?
|
The transmission of energy in the form of waves or rays, from the longest radio waves to the shortest gamma rays
|
|
|
What is the order of electromagnetic radiation starting from the highest to the lowest wavelength?
|
Radio waves, microwaves, infrared waves, (visible light), UV waves, x rays and gamma rays
|
|
|
What are radio waves?
|
The type of electromagnetic wave that is used in radios and televisions
|
|
|
What are microwaves?
|
A type of radio wave that is used in satellites and microwaves
|
|
|
Which is faster, radio waves or gamma rays?
|
They both go at the same speed
|
|
|
What are infrared waves?
|
A type of electromagnetic radiation that is used to detect heat
|
|
|
What are UV rays?
|
A type of electromagnetic radiation that allows your body to make vitamin D but overexposure can lead to sunburns and skin cancer
|
|
|
What are X rays?
|
A type of electromagnetic radiation that is used to photograph teeth and bones
|
|
|
What are gamma rays?
|
A type of electromagnetic radiation that is used in radiation therapy to kill cancer cells
|
|
|
What is the universal wave equation?
|
lambda times frequency = velocity (speed of the wave)
|
