Your brain intereprets signals from ........ as sounds.
What is tiny hairs that affect nerve cells.
200
Measure of sound energy reaching your ear.
What is loudness.
200
Rate of travel of a sound wave.
What is speed of sound.
200
A wire with electric currents, wrapped around an iron bar.
What is electromagnet.
200
A complete path taht electric current follows.
What is electric circuit.
200
The pitch of a stringed instrument can be affected by.....
What is the length of its strings.
300
Area where air is pused together by vibrations.
What is compression.
300
Measuer of how high or low a sound is.
What is pitch.
300
The buildup of charges on an object.
What is static electricity.
300
A kind of kinetic energy caused by flowing electrons.
What is current electricity.
300
A sonic boom is caused by......
What is an objectmoving faster than the speed of sound.
400
Sound wave made by an object moving faster than the speed of sound.
What is sonic boom.
400
Measure of energy a wave carries.
What is amplitude.
400
The flow of electrons through a conductor.
What is electric current.
400
A unit that measures the amount of electrical energy a device uses each second.
What is watt.
400
A kind of circuit that is used for wiring in buildings.
What is parallel.
500
Reflection of sound waves.
What is echo.
500
Measure of the distance between a point on one wave and the same oint on the next wave.
What is sound waves.
500
A material taht carries electricity well.
What is conductor.
500
The part of an atom that is involved in electricity.
What is electron?
500
Thunderstorms bring lightning. If you are swimming or boating when a thunderstorm is on the way, you must get out of the water immediately. This means water is a good.....