when a turning fork vibrates over an open pipe and the air in the pipe starts to vibrate.....?

Question

the vibrations in the tube are caused by what?


A.Harmonics
B.Reinforcement
C.Beats
D.Resonance

Answer 1

This is a crummy question. Well all multiple choice questions are crummy, but this is bad even so.

D is probably the best answer

Although B would be another word for the same thing.

And A (harmonics) is involved in determining which frequencies can resonate.

Answer 2

the difficulty is air interior the equipment and that's spoke of as "water hammer". fixing it completely demands a small plumbing exchange. you're able to purchase an merchandise specifically meant for this, which must be inserted into the present water pipe, or you're able to make one your self. If making it, you like a small piece of pipe (6 to eight inches long) of a similar fabric as modern-day pipe, a cap for the recent section, and a "tee" joint. interior the basement, you open the present pipe and create a area of interest sufficiently enormous to handle the "tee"...type of a million/2 to a million inch, based ont he length of the object you purchase. After cleansing all uncovered ends of the pipe, previous and new, the cap is soldered/glued to one end of the recent piece and the different end is soldered/glued into the T section. the different ends of the joint are then placed over the unique pipe ends and soldered/glued there. enable the recent piece to show upwards. This traps air interior the recent piece and can grant a cushion that compresses/expands and could end the noise completely. .

Answer 3

Resonance.

Answer 4

B.Reinforcement

Answer 5

D.Resonance

Answer 6

D would be correct from those choices but Propogation is probably more accurate.

Answer 7

The answer is D.