Waves
What do waves carry?
Energy
All sound is produced by:
Vibrations
True or False Light travels in a straight line?
True
Name a part of the longitudinal wave
Rarefactions
Does sound travel faster in space?
No
Light that bounces off of an object is called
Reflection
What do waves need to travel through?
Medium
How does sound going slower in water make it hard to talk to someone underwater?
Because our ears are designed for air.
The bending of light as it passes at an angle from one type of matter into another?
Refraction
What is the highest frequency Wave?
Gamma Rays
Ten identical vacuum cleaners, each producing a sound intensity level of 70 dB at a specific point, are all turned on simultaneously. What is the resultant sound intensity level at that same point, assuming interference is negligible?
The decibel scale is logarithmic. Adding decibel levels directly is incorrect. First, we determine the intensity of one vacuum cleaner relative to the reference intensity. The answer is 80db
Materials that do not let light pass through them?
Opaque
Why do quantum effects (e.g., wave properties of matter) typically only become apparent at the atomic or subatomic scales, and not in everyday macroscopic waves?
due to the extremely small value of Planck's constant (H) and its role in the de Broglie wavelength question.
Explain the concept of loudness (decibels) and why it's logarithmic, not linear, and how it relates to sound intensity.
The decibel (dB) scale measures the intensity of sound logarithmically to manage the enormous range of sound energy the human ear can detect and to reflect how humans perceive loudness.
A ray of light hits a mirror at a 45 degree angle. What is true about the way the light will reflect off the mirror?
The light will reflect at a 45 degree angle