Draw the sketches of two waves a and b such that wave a has twice the wavelength and half the amplitude of wave b.

Wave B will, therefore, be considered more powerful than wave A. Waves with higher frequencies are more energetic than those with lower frequencies. The equation below demonstrates this. The higher the amplitude also, the higher the energy of the wave.

v = f λ

Where,

v = velocity of the wave,

f = frequency of the wave,

λ = wavelength.

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

b.a device that inputs heat into a cool object