Energy
Level 2 Practice
Level 3 Practice
Random
Vocabulary
300
How fast a wave travels is known as
Wave speed or velocity.
300
Which signal is more reliable, has better quality, and speed?
Digital
300
when waves bounce back from a surface they cannot pass through it is called _____________________.
Reflection
300
What is the frequency of the waves in this picture?
3 Hertz
300
The distance between two crests or two troughs.
Wavelength
400
Which type of wave moves the particles parallel to the direction of the wave.
Longitudinal
400
Transverse waves move __________________to the direction of energy transferred.
Perpendicular
400
Radio towers send __ signals through continuous waves that translate into sound.
Analog
400
The distance from rest(equilibrium) to trough.
Amplitude
400
Mirrors r____ light while lenses r____ light.
reflect, refract
500
The matter that waves travel through is known as
Medium
500
In this type of wave the medium and the energy moves in the same direction.
Longitudinal Wave
500
What type of wave does not need a medium to travel to?
Electromagnetic waves.
500
This happens when sound waves bounce back from a surface that they can’t pass through.
Echo
500
C_____ mirrors curve inward like the inside of a spoon.
Concave
600
Which type of wave moves particles in right angles in the direction of the waves?
Transverse
600
What is a medium? Give the 3 examples
Material through which waves can travel though. (Gas, liquids, solids)
600
What are the two types of mechanical waves called?
What is transverse and longitudinal waves.
600
Frequency of a wave is measured in?
Hz ( Hertz)
600
Real images are ____ while virtual images are ____.
Hint: opposite of what it sounds like.
inverted, upright
700
A disturbance that carries energy is called
a wave!
700
What does the wavelength measure?
How long one wave is.
700
Light is R____ and R_____ in fiber optic cables to transmit a signal.
Refracted and Reflected
700
This is when waves bend as they enter a new medium at an angle.
Refraction
700
Convex lenses are...
thicker in the center and thinner around the edges, it refracts light toward a focal point