Electricity
Why does the plastic keep the electricity from starting a fire?
insulator
Does the force of attraction increase or decrease when when the distance is decreased between a North pole and a South pole magnet?
increase
Electromagnetic waves transmit___.
energy
A propagating disturbance that transfers energy through a medium without transferring matter
wave
The distance from one identified point (i.e. crest) on a wave to the next identified point on a wave. Inversely related with frequency.
Wavelength
A circuit where components are connected in a single line, so the current flows through each component in turn.
Series
Opposite poles of two magnets are brought close together, causing them to push or pull towards each other due to the invisible magnetic field surrounding them
pull
The power of their magnetic field can be adjusted by increasing or decreasing the amount of _____ flowing through the wire coils.
electricity
____ wave's particles move up and down while the wave moves forward. A _____wave's particles move back and forth in the same direction as the wave is moving.
Transverse, Longitudinal
The measure of how many times a complete wave passes a point.
Frequency
A circuit where components are connected in branches, so the current can flow through multiple paths.
Parallel
Two like poles of magnets face each other, causing them to push or pull away due to the interaction of their magnetic fields
push
By disrupting the flow of electricity through the wire coils, the magnetic field can be enabled or disabled.
disabled
___ waves do not require a medium for them to move. They can travel to any medium, but they can still transfer energy through a vacuum of space.
Electromagnetic
The distance from the midline to the crest or trough of the wave.
amplitude
The fundamental property of matter that can be positive or negative.
Electrical Charge
Atom that are aligned or unaligned will in fact produce a stronger magnetic field.
Electromagnets are made of ___ of wire with electricity passing through them.
coils
____ waves emit energy by causing vibrations in the particles of a medium like air while _____ waves emit energy through oscillating electric and magnetic fields without requiring a medium.
Sound, Light
When a wave is deflected from a straight path from one medium (such as air) into another (such as glass) in which its velocity is different.
refraction
A circuit with complete path for electric current to flow, allowing electricity to pass through.
closed
Magnetic metals include nickel, cobalt, steel and __.
iron
_____ forces are created when electrically charged particles are in motion, generating both electric fields and magnetic fields.
Electromagnetic
Waves transmit energy by causing particles within a medium to ___, transferring the energy from one particle to the next.
vibrate
The regions of a longitudinal wave where the particles spaced out (further in distance).
rarefaction