WorksheetsIS5 Exam Review: Waves
Total questions: 40
Worksheet time: 24mins
The distance in between two waves.
wave speed
frequency
wavelength
_____ waves NEED a medium to travel.
Seismic
Light
Mechanical
Frequency is always measured in _________
kilometers
Hertz
centimeters
You're in your room blasting music with the door shut, your mom opens your door. Now your music is heard throughout your home. This is an example of _______
interference
diffraction
reflection
When two waves overlap each other, this behavior is known as _______.
interference
refraction
frequency
If the amplitude increases during interference, this is __________
destructive interference
constructive interference
This is a high frequency wave. Which part of the wave is "B"
crest/peak
wavelength
trough
Look at this wave. "A" is which part of a wave?
Crest/Peak
Wave Speed
Resting Point
The speed of a wave on a rope is 50 cm/s and its wavelength is 10 cm. What is the wave's frequency?
Photoelectric effect provides the evidence for the ______ nature of radiation.
dual
wave
particle
electromagnetic
Light of a given wavelength is used to illuminate the surface of a metal. However, no photoelectrons are emitted. In order to cause electrons to be ejected, light of __________ should be used.
lower energy
higher intensity
shorter frequency
higher frequency
The energy of a photon is directly proportional to its _____ and inversely proportional to its ______.
intensity - speed
wavelength - frequency
frequency - wavelength
intensity - wavelength
A metal with a work function of 3.5 eV is exposed to photons with an energy of 3.7 eV. What is the maximum kinetic energy of the emitted photoelectrons?
0.2 eV
0.9 eV
1.1 eV
7.7 eV
What is the energy of a photon with a frequency of 5x1014 Hz? (you need to do calculation. You have enough time)
2.5x10-19 J
3.0x10-19 J
3.3x10-19 J
4.5x10-19 J
What is the energy of a photon with a frequency of 5x1014 Hz? (you need to do calculation. You have enough time) h=6.6x10-34 J/Hz
2.5x10-19 J
3.0x10-19 J
3.3x10-19 J
4.5x10-19 J
The SI unit of frequency is the __________.
meter
second
hertz
meter per second
When light of specific frequencies is shined on a surface, electrons are ejected from the surface. This is the idea behind...
Quantization of Energy
Photoelectric Effect
Compton Effect
deBroglie Waves
Uncertainty Principle
Energy of a photon is ___ proportional to frequency.
directly
inversely
The portion of the electromagnetic spectrum that humans can see is called:
radio waves
visible light
gamma rays
x-rays
When wavelength increases...
energy decreases
energy increases
As wavelength decreases...
energy increases
energy decreases
Which type of electromagnetic energy carries the least energy?
X-Rays
Visible Light
Ultraviolet
Microwaves
The speed of electromagnetic radiation:
depends on the form of radiation
is always 3 x 108 m/s, regardless of the type
decreases as distance increases
is 6.626 x 10-34 J x s
Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different parts of a house. At each part of the house,Joseph used a different antenna. The experiment could have been improved by_________.
testing reception of a different channel during each trial
using the same antenna during each trial
measuring the antenna length in centimeters
measuring the distance to the television station
As the frequency of an electromagnetic wave increases, its wavelength
becomes larger
becomes smaller
stays the same
does not change
Sunscreen is designed to protect your skin from exposure to too much ___________.
ultraviolet radiation
gamma radiation
infrared radiation
visible light
Which of the following electromagnetic waves can travel through matter and cause damage to cells?
radio waves
microwaves
infrared waves
gamma rays
All waves carry ________ as they travel from one place to another.
matter
space
energy
water
How are Electromagnetic waves different from Mechanical waves?
EM waves have very short wavelengths
EM waves transmit energy instead of matter
EM waves can travel through the vacuum of space (without particles)
EM waves can change direction by reflection
Wavelength and Frequency are related in that...
they are always the same
when one increases, the other decreases (inversely proportional)
there is no correlation
they both vary in an irregular pattern
In what direction does a wave propegate from its source?
To the north
In all directions
Only downwards
To the right
A wave with a large wavelength will have a ______ frequency and _____ energy
high, low
high, high
low, high
low, low
Considering frequency of 109 Hz and frequency of 1011 Hz, which type of radiation has the LONGER wavelength?
109 Hz
1011 Hz
