waves, sound pysichs test

what does a wave transfer, energy or matter

energy

what is the difference between a mechanical and non-mechanical wave.

mechanical requires medium to travel. Non mechanical does not.

What type of waves is sound, mechanical or non-mechanical

mechanical

what type of wave is light, mechanical or non-mechanical

non mechanical

what is the definition of period? what is the unit?

time for 1 wave. seconds

what is the definition of frequency? what is the unit?

#of waves for 1 sec. Hz

what is the relationship between period and frequency?

inverse T=1/f F=1/t

8

graph

does a wave with higher amplitude have a smaller or greater amount of energy compared to one with a lower one

greater

what is the symbol for wavelength. What is the unit

symbol is λ. unit is m.

what is the definition of a medium?

a substance/material which a wave travel through

if a wave travel in the same medium, do they have the same or different speeds?

same speed

if wave speed is constant, what is the relationship between frequency and wavelength

inverse

what is an echo

reflected sound wave

what is the definition of a transverse wave? is light or sound an example of a transverse wave?

vibration and medium are perpendicular. light

what is the definition of a longitudinal wave? is light or sound an example of a longitudinal wave?

vibration and medium are parallel. sound

what is the definition of interference

when two waves meet in the same medium, overlap and take now shape.

what type of interference occurs when two waves meet with amplitudes on the same sides (when a crest meets a crest or a trough meets a trough) ? Do they combine to get bigger or smaller in amplitude?

constructive, bigger

what type of interference occurs when two waves meet with amplitudes on the opposite sides (when a crest meets a crest or a trough meets a trough) ? Do they combine to get bigger or smaller in amplitude?

destructive, smaller

what quantity does pitch depend on

frequency

what quantity does loudness depend on?

amplitude & energy

what is the definition of resonance? provide examples

when forced frequency matches natural frequency and amplitude increases.

what is the doppler effect

a perceived change in frequency due to a moving source.

When a source is coming towards an observer, do they hear a higher or lower frequency

higher

When a source is moving away from an observer, do they hear a higher or lower frequency

lower

what type of wave is light?

an electromagnetic wave

what is speed of light or any other waves on the electromagnetic spectrum?

C=v=3×10⁸ m/s

what makes up the visible light spectrum?

ROYGBIV

which color has the highest frequency(lowest wavelength)

violet

which color has the lowest frequency (highest wavelength)

RED

what are two ways we can see light?

look at source, or reflected off an object

what type of matter has light pass through clearly?

transparent

what type of matters has light pass through, but distorts it?

Translucent

what type of matter has light being absorbed or reflected off it?

Opaque

what are the primary colors of light

Red, Green, Blue

what is the difference between white and black light

White- reflects all light

blacks- absorbs all light