Energy Transfer in Waves
Physics ⇒ Waves and Sound
Energy Transfer in Waves starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Energy Transfer in Waves.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A light wave has a frequency of 6×1014 Hz. What is the energy of a single photon of this light? (Planck's constant h = 6.63×10-34 J·s)
A sound wave has an intensity of 0.01 W/m² at a distance of 2 m from the source. What is the total power output of the source, assuming it radiates equally in all directions?
A sound wave travels from air into water. Does the energy transfer increase, decrease, or stay the same? Explain.
A string is vibrating with a frequency of 50 Hz and a wavelength of 0.4 m. Calculate the speed of the wave on the string.
A water wave has a wavelength of 2 m and a frequency of 0.5 Hz. What is its speed?
A wave has a power of 8 W and covers an area of 4 m². What is its intensity?
A wave has an amplitude of 0.1 m. If the amplitude is reduced to 0.05 m, by what factor does the energy carried by the wave change?
A wave has an intensity of 5 W/m². If the area it covers is 2 m², what is the total power transmitted?
A wave on a string has an amplitude of 0.05 m and a frequency of 10 Hz. If the string transmits 2.0 W of power, what is the energy transferred in 5 seconds?
A wave pulse on a rope carries 3 J of energy in 2 seconds. What is the average power transmitted by the wave?
Describe how energy is transferred in a sound wave traveling through air.
Describe how energy is transferred in ocean waves.
Describe the difference between energy transfer in mechanical and electromagnetic waves.
Explain the role of resonance in energy transfer in waves.
Explain what happens to the energy of a wave when it is absorbed by a material.
Explain why electromagnetic waves can transfer energy through empty space, but sound waves cannot.
Explain why energy transfer in a wave does not result in the net movement of matter.
Explain why the energy carried by a wave decreases as it spreads out from the source.
If the frequency of a wave is increased while keeping the amplitude constant, what happens to the energy carried by the wave?
If the intensity of a wave is quadrupled, what happens to the amplitude?
