Energy
What type of energy does a lamp emit?
radiant
plastic, rubber, paper, wood
transverse
What causes sound?
vibrations
What type of energy does a cell phone use to charge?
electrical
Give an example of an electrical conductor.
steel, copper, aluminum
the distance between two waves
What type of wave does sound move in?
compression
What type of energy does a blender use to chop strawberries?
mechanical
What are three necessary parts of an electrical circuit?
battery, wire, load
What happens to the frequency of a wave if the wavelength increases?
decreases
What causes higher and lower pitch?
frequency of the wave
What type of energy does a heater emit?
thermal
wind, sun, water
What color has the longest wavelength?
red
What type of material (solid, liquid, gas) does sound move through the fastest?
solid
What type of energy is stored in bonds of molecules?
chemical
Name two ways to increase the strength of an electromagnet.
more batteries, more coils
light reflects off an object and hits our eyes
Give an example of a musical instrument and explain how it produces sound.