PHYSICS exam 3

is sound EM waves?

NO

light transmitted through non-opaque materials is…

reflected/converted to internal energy

solar eclipse

when the shadow of the moon falls on the Earth

light with MORE refraction that green?

blue

rainbow has …

internal reflection, dispersion, and refraction

real image is cast by —- lens

converging

Hyugen’s principle":

• refers to waves

• every point on a wavefront can be considered part of its waveness

diffraction grating relies on..

light interference

polarization only occurs in

transverse waves

period

time it takes for a pendulum to swing to and fro

waves transfer____

energy!!!!!

speed of light

c=f*wavelength

standing waves are a result of ____

interference & waves overlapping & waves reflecting upon themselves

doppler effect has increased ___ but not ___

frequency, but not speed

humans can’t hear

ultrasonic OR infrasonic

sound travels fastest in ___

steel

speed of sound is greater on a hot or cold day?

hot apparently »>

when an object is set vibrating with a matching frequency, it has

resonance

noise cancelling devices use

sound interference

determine the frequency of a piano string

need more information!