Atuning fork is struck and is vibrating at a single frequency. if a second tuning fork with the same frequency is placed near the first it begins to vibrate. this is an example of

resonance
forced vibration
beats
doppler effect

It is not forced vibrations just turned it in and was wrong.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is