The rapid moving back and forth movement of matter
What is vibration?
100
The way sound and light always travel;
disturbances moving through mediums
What are waves?
100
The way light waves travel in straight paths
What are rays?
100
Unlike sound waves, light waves can travel through a ________________.
Vacuum
100
The number of colors in the visible spectrum of white light;
(These are the colors in a rainbow.)
What is: 7?
200
The number of waves passing a given point in a given time;
This determines the pitch of sound.
What is frequency?
200
The parts of a wavelength
What are crest & trough?
200
The amount of time and distance it takes light from the sun to travel to the Earth
What are: 8 1/2 minutes & 150 kilometers?
200
What type of material is a mirror? (transparent, translucent, opaque)
Opaque
200
An optical device that separates white light into the colors of the visible spectrum
What is a prism?
300
The instrument that uses sound waves to locate objects underwater (it can detect the depth, size and distance of an object).
What is sonar?
300
The distance between two compressions of a sound wave
What is a wavelength?
300
1. The quality of most light being able to pass through an object; objects can be clearly seen;
2. Some of the light is able to pass through an object, but it is scattered; objects cannot be clearly seen;
3. None of the light passes through an object
What are: 1. transparent; 2. translucent; 3. opaque?
300
Give an example of a transparent, translucent, and opaque object.
glass, wax paper, wood (answers may vary)
300
1. This color has the longest wavelength.
2. This color has the shortest wavelength.
What are: 1. red; 2. violet?
400
The part of a sound wave where the atoms are packed tightly together. The part of a sound wave where the atoms are spread apart.
Compression, Rarefaction.
400
This energy is transmitted by vibrating matter; travels in waves that must have a medium in which to move; and travels most quickly through solids.
What is: sound energy?
400
1. A lens that curves inward and makes images appear smaller;
2. A lens that curves outward and makes images appear larger
What are: 1. concave lens; 2. convex lens?
400
An object that absorbs all colors of light is which color?
Black
400
When light bounces off an object it is ________________. When light is bent is is __________________.
Reflected, refracted.
500
Animals use sound waves to ____________________.
Locate food.
500
You can only see objects when this is reflected off the objects.