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Chapter 17 Chapter 18 Chapter 20 Mixed Bag Random
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White light passing through a
prism separates into colors
because of the differences in the
_______ of each color of light.
Wavelength or frequency
Waves in a rope are transverse
waves because the medium’s
vibration is __________ to the
direction in which the wave
travels.
perpendicular
Consider a wave approaching a
barrier with a small hole. What
change is the wave likely to
undergo as it encounters the
barrier.
Diffraction
Two waves in the ocean meet and
combine together. This
interference is described as.
What is constructive
interference?
The formula for wavespeed.
Wave speed = Frequency x
wavelength.
The basic difference between
electromagnetic waves and sound
waves.
EM waves do not require a
medium while Sound waves do.
Electromagnetic waves vary in
Frequency and wavelength
A translucent material does this
with light.
Scatters some light.
When viewed in blue light, an
object that reelects all the colors
of light will appear _______
Blue
What does light passing through
a prism prove?
White light is made of all colors.
Name three ways that charge can
be transferred.
Induction, contact, friction
What is the difference between
direct current and alternating
current.
In direct current charges only
flow in one direction, in
alternating it can travel in two
directions.
The current in a toaster oven
measures 10 amps. The
resistance of the iron is 12 ohms.
Find the voltage.
V=IR
V = 10amps x 12 ohms
V = 120 Volts
The voltage is 90 volts and the
resistance is 30 ohms of an
object. Find the current.
V = IR
I = V/R
I = 90volts/30ohms
I = 3 Amps
Name three things that affect
resistance.
Thickness, length, and
temperature.
The type of current used in your
house.
Alternating Current (AC)
Type of transfer of charge when
putting your hand near a Van de
Graff generator.
Induction
A person walks 6 meters forward,
realizes he drops his keys and
walks back 3 meters to get them.
What is his displacement?
What is the distance traveled?
Displacement = 3m
Distance = 9m
Describe Newton’s laws of
motion.
1st = Inertia
2nd is F=MA
3rd = For every action there is an
equal and opposite reaction.
Describe refraction.
Light has the ability to bend, or
refract, as it enters a new medium
2008 Superbowl Champions
New York Giants
Who said, "Imagination is more
important than knowledge."
Albert Einstein
P waves in an Earthquake travel
as what?
A series of compressions and
rarefactions.
Name the two things that affect
the strength of an electric field.
Amount of charge on the object
and distance from the charge.
A car moves at 20m/s, 10 s later
the car is moving at 50 m/s. Find
the cars acceleration.
Acc = (Vf – Vi)/time
(50m/s – 20m/s)/ 10s
Acc = 3m/s2