physical science waves unit
The crest of a transverse wave is BEST shown by letter
A
Which wave diagram BEST represents a dim red sunset on the right side to the light from an intense ultraviolet bug light on the left side?
C
Sonar signals and infrared light are are used to send messages to submarines deep under water. If we compare the two signals, which statement describes a difference between the two?
The infrared light gets there faster and is clearer.
What is true for ALL of the examples of electromagnetic waves?
They all move at the same speed in a vacuum.
What is the relationship between the wavelength of a wave and its energy?
They are inversely proportional
What information can be deduced by analyzing the graph?
Wavelength and frequency have an inverse relationship.
Letter D represents the __________ of the wave.
amplitude
The graph indicates what about the relationship between wavelength and frequency?
as wavelength decreases, frequency increases
Why do electromagnetic waves not require a medium for travel?
because electromagnetic waves transmit energy without compressing the particles of the medium
Nina's measurements, shown in the table here, BEST represent a wave with
decreasing frequency
Which example is NOT a part of the electromagnetic spectrum?
electricity
This graph is accurate because
electromagnetic waves move faster than mechanical waves.
Limiting contact between gamma rays and healthy tissue is important because
gamma rays are high energy and may cause damage to healthy cells.
The color produced by fireworks is all due to the chemicals inside of the firework itself. Which of these would describe a firework that looked violet?
high energy and short wavelength
According to the electromagnetic spectrum, Gamma rays have the shortest wavelength. Therefore, Gamma rays have ______________ frequency.
highest
When describing electromagnetic radiation, there is a(n) _____________ relationship between wavelength and frequency and the greater the frequency, the ____________ energy the electromagnetic radiation has.
inverse; more
Based on the equation, determine what happens to the frequency if the period were to change from 0.2 seconds to 0.5 seconds.
it would decrease
The wavelengths of radio waves are much _______________ than the wavelength of microwaves. Therefore, radio waves carry much __________ energy than a microwave.
longer, less
Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy transport. Identify another name for this type of wave motion.
longitudinal waves
The higher the frequency of a photon, the
shorter the wavelength and the higher the energy.
Which of these waves can NOT travel through the vacuum of space?
sound waves
Which waves move by replacing one particle with another?
sound waves
While watching a recent science fiction movie, one Klingon spaceship blows up a Droid spaceship with a laser gun. The Klingon crew watches out the port window and covers their ears to muffle the noise from the explosion. Scientifically, this scene is inaccurate because
the sound of the explosion would not be transmitted back to their ship.
Two people each hold the end of a rope and create waves by moving their arms up and down. This wave is best classified as a transverse wave because ___________
the wave is moving horizontally as the particles of the rope move up and down.
The wavelength and energy of a wave are inversely proportional. Based on this, which wave listed would have the LOWEST energy.
wave with wavelength of 600 km
The distance from point A to point B is known as the
wavelength
The distance shown in the diagram is known as the
wavelength
