waves and electromagnetic waves

A material the transfers energy freely

medium

A material that refused/prevent transfer of energy

insulator

how do you calculate electric current

voltage/resistance

electric charges at rest (“build up”);generally produced by friction/induction

static electricity

Area of magnetic force around a magnet

magnetic field

what happen when you place 2 north poles together

they repel

What happens to the magnetic domain when a material is magnetized

they align in the same direction

Why do compasses point north

Earth’s magnetic field

interaction between electricity and magnetism

electromagnetism

a device that turns mechanical energy into electricity

generator

a wave in which the particles of the medium vibrate perpendicularly to the wave direction

transverse wave

what factors determine wave speed

medium determine wave speed

a bouncing back of a wave when it hits a surface through it cannot pass

wave reflection

The bending of a wave as it passes at an angle from one medium to another

refraction

A closed or complete, path in which an electric current travels is an ___

electric circuit

what is the term for bending of waves around obstacles

diffraction

highest point of wavelength

crest

how is electricity and magnetism related?

Electric current generates magnetic fields and Changing magnetic fields create electricity

how do surface waves move matter?

Circular motion

what happens to light as it travels through air?

diffraction, reflection, energy loss

lighting seen before thunder

light travels faster than sound

what happens to a sound wave when it interacts with matter?

reflected, absorbed, or transmitted

a change in sound frequency caused by motion of Sound Source motion of the listener or both

Doppler effect

what is the distance between 2 crest of a wave

wavelength

in a longitudinal wave the areas where the particles are closest together are called

compressions