Questions with complete solution
2026/2027
The distance between repeating points on a wave is known as the...
wavelength
frequency
speed
period - correct answer ✔Wavelength
The time between repeating points on a wave is known as the...
period
frequency
wavelength
speed - correct answer ✔period
The process through which noise cancelling headphones work is called...
destructive interference
resonant frequencies
"in-phase" interference
longitudinal interference - correct answer ✔destructive interference
Humans interpret the amplitude of a sound wave as...
loudness
pitch
, frequency
octaves - correct answer ✔loudness
The change in the pitch of sound that occurs because the source is moving is a result of...
the Doppler Effect
the Photoelectric Effect
resonant frequencies
"in-phase" interference - correct answer ✔the Doppler effect
Different colors of light correspond to their...
frequencies
intensities
velocities
polarities - correct answer ✔frequencies
When light strikes the surface of an object, which of the following can happen?
absorption
reflection
refraction
interference
diffraction - correct answer ✔absorption
reflection
refraction
The fact that light moves slower in some materials than others is the cause of...