sxience electromagnetic wave thingy

James clerk maxwell

scientist that assumed light was an electromagnetic wave

james clerk maxwell

he noticed that electric and magnetic fields can couple tgt and form electromagnetic waves.

james clerk maxwell

he discovered that a changing magnetic field will induce a changing electric fields and vice versa

heinrich hertz

unit of frequency of a radiowave: one cycle/second(hertz) was named after him

heinrich hertz

he proved the existence of radiowaves

michael faraday

he discovered electromagnetic induction

michael faraday

he introduced the concept of field in physcis to descrube electromagnetic interaction

michael faraday

he contributed to the electromagnetic theory of light

andré-marie ampére

he discovered that a wire carrying electric current can attract or repel another wire next to it that is also carrying electric current

andré-marie ampére

he formulated ampere‘s law of electromagnetism

hans christian oersted

discovered that electric current in a wire can deflect a magnetized compass needle

electromagnetic wave

produces by a charge that changes its speed or direction

electrons

are charged particles that can produce electric and magnetic fields

transverse waves

electromagnetic waves are considered as__

3×10⁸ m/s or 300,000,000m/s

electromagnetic waves travel at

denoted as c, the speed of light

electromagnetic waves are denoted as____

150million kilometers in 8 minutes

sun travels______

inversely proportional to eachother

wavelength and frequeuncy are ______

electromagnetic waves

they dont require any material or medium for propagation

radiowaves

microwaves

infrared radiation

visible light

ultraviolet

xrays

gammarays

Non ionizing waves to ionizing waves:

photons

are bundles of wave energy

building size

radiowaves size:

atom size

gammarays size:

radiowaves

microwaves

infrared radiation

visible light

give non ionizing waves

ultraviolet

xrays

gammarays

give ionizing waves

v=𝜆f

formula

wave speed m/s

meaning and unit of v

frequency Hz

meaning and unit of f

wavelength m

meaning and unit of 𝜆 (lambda)

wave

a way energy moves from one place to another

light waves, sound waves, ocean waves

examplss of waves

crest

highest point of a wave

trough

the lowest point of a wave

amplitude

the height of the wave, it tells how strong a wave is

wavelength

the distance between two waves

they have large amplituds

if the waves are tall

they have small amplitude

if the waves are short

waves

can make objects move

electromagnetic radiation

a type of energy transfer by the way of varying electric and magnetic fields

electromagnetic spectrum

the range of frequencies of electromagnetic radiation

electromagnetic waves

are disturbances to electric and magnetic fields which propagates through space and repeats in time, frequency and space(wavelength).

frequency

the rate at which something occurs or repeats within a given amount of time

gamma rays

an electromagnetic wave with a higher frequency than xray, produced by nuclear reactions. The radiation can be used to treat cancer.

infrared

an electromagnetic wave slightly higher frequency than a microwave. It is invisible to the human eye and used for transmitting heat.

radiowaves

a low frequency electromagnetic wave of a frequency used for long distance communication

microwaves

a low frequency electromagnetic wave of a frequency used for long distance communication micro

ultraviolet

an electromagnetic wave with a slightly higher frequency than a visible light. it is used in devices such as blacklights and is absorbed from sunlight to cause sunburn

visible light

an electromagnetic wave with a slightly higher frequency than infrared that we can see. it allows us to see colors

wavelengths

the distance between subsequent features of the electromagnetic waves such as the crests

x rays

an electromagnetic wave with a slightly higher frequency than ultraviolet radiation. they are responsible for xray machines that allows us to see through skin