# waves

waves
waves are in everything we do from just walking, to talking to running to walking as we know already
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Slide 1: Slide

This lesson contains 24 slides, with interactive quizzes, text slides and 4 videos.

## Items in this lesson

waves
waves are in everything we do from just walking, to talking to running to walking as we know already

#### Slide 1 -Slide

what is a wave ?
a wave transfers energy from one medium to another without any loss in energy

#### Slide 2 -Slide

characteristics of waves
In physics, waves are a fundamental concept that describe the transfer of energy through space and time. Waves exhibit several key characteristics, which help us understand and analyze their behavior. Here are the main characteristics of waves in physics:

#### Slide 3 -Slide

Amplitude
Amplitude is the maximum displacement of points on a wave, which you can think of as the degree or intensity of change. This maximum displacement is measured from the equilibrium position.

#### Slide 5 -Slide

wavelength
Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually specified in meters (m), centimeters (cm) or millimeters (mm).

#### Slide 6 -Slide

wavelength is mathematically defined as:

#### Slide 9 -Video

A long range early warning radar system used for air defense operates at a frequency of 126 MHz (126,000,000 Hz). What is the wavelength of the electrical oscillations in the radar system?
A
0.0238 micrometers
B
2380 kilometers
C
2.38 meters
D
2.38 centimeters

#### Slide 10 -Quiz

What is wavelength?

#### Slide 13 -Video

light
as we know light is energy and we also know for light to be a thing there must be a source for that light and that source must reach an  interference or an end point and light can either converge of diverge

#### Slide 14 -Slide

select the odd one

A
interference
B
propagation
C
deflection
D
none of the above

#### Slide 15 -Quiz

properties of light
in order to differentiate anything you must first know the characteristics of those things and light has characteristics unique to itself like ;

#### Slide 16 -Slide

properties of light
PRT
polarity
reflection
transversing

#### Slide 18 -Video

is light a particle or a wave
A
particle
B
none of the above
C
its a photon
D
wave

#### Slide 19 -Quiz

sound waves
A sound wave is the pattern of disturbance caused by the energy travelling away from the source of the sound. Sound waves are longitudinal waves

#### Slide 21 -Slide

characteristics of a sound wave
now a sound wave is different from a light wave but then again not all sounds sound the same
as hitting a drumset and playing a keyboard produce totally different sounds because each sound has different values of ther characteristics

#### Slide 22 -Slide

frequency
The number of rarefactions and compressions that occur per unit time is known as the frequency of a sound wave. The formula of the frequency of a wave is given as: