Waves Unit Flashcards
(15 cards)
Which waves can carry matter?
None, waves carry energy.
All waves need a medium to travel?
Not all, Electromagnetic waves can travel in a vacuum.
Frequency is…
the number of repetition of a wave in one second.
What is the difference between a longitudinal wave and a transverse wave?
The direction in which the vibration occurs.
Sound waves travel at the same speed through solids, liquids, and gases.
False, they travel faster through a solid.
What is a wave?
A disturbance that transmits energy from one place to another
The crest of a wave is…
The highest point of a wave.
Light waves can travel through a vacuum.
True
What kind of object allows light to pass through it?
Glasses Lenses
What color is formed when all the colors of light are combined?
White
What are examples of natural light?
Sun, fire, lightening, lightening bugs, fireflies, etc.
An opaque object…
Allows NO light to pass through it.
An apple looks red to you because light is…
Reflected
What types of code uses two signals?
Binary Code
Which types of wave is used with communication devices?
Radio Waves
