Sound 1
A type of mechanical wave that carries energy from sound disturbances that vibrate the particles in the medium back and forth.
What is Sound Waves?
The distance between two crests or two troughs; the total length of the wave.
What is Wavelength?
A wave that needs a medium (ex. air, water, rock, metal) to travel.
What is a Mechanical Wave?
A type of metal which is naturally magnetic.
What is a Ferromagnet?
A type of magnet made with a conductive metal wire, like copper wire, that have an electric current running through it.
What is an Electromagnet?
Waves that travel up-and-down.
What is a Transverse Wave?
Waves that travel side-to-side, like a slinky.
What is a Longitudinal Wave?
The peak or highest point of a wave.
What is the Crest?
The movement of electrons.
What is Electricity?
The area around a magnet where the magnet exerts a force.
What is a Magnetic Field?
Number of waves per second, relates to the PITCH of a sound. Measured in Hz.
What is Frequency?
The energy a wave has, is connected to the VOLUME of a sound.
What is the Amplitude?
Outer part of the ear, acts like a satellite.
What is the Pinna?
The force type (attract/repel) experienced when two bar magnets have the same pole facing each other.
What is Repel?
The force a magnet exerts; this is a non-contact force.
What is Magnetism?
What is "by vibrating particles in the medium"?
Sound can travel through space or a vacuum.
What is "False"?
Inside the cochlea (inner ear, looks like a shell), these cells bend due to sound waves.
What is a Hair Cell?
Kinds of metals that are ferromagnetic.
What is iron, nickel and cobalt?
Kind of rare Earth magnet, used in the 1st compasses.
What is Lodestone?
Sound waves can only travel through air.
What is "false"?
Sounds with LARGER amplitude experience _____ volume.
What is "louder" or "more"?
The mechanism on the inside of a speaker that causes the speaker to vibrate.
What is a permanent magnet and an electromagnet (copper wire coil)?
As two attracting magnets get closer together, the force they experience is ____.
What is "larger/stronger"?
The number of magnet fields that occur when two magnets, a bar magnet and an electromagnet, with an ATTRACTIVE force are near each other.
What is One Large Magnetic Field?