Question

1 point
2) In the set-up shown here, there is an electric bell inside a vacuum jar. The bell is turned
on and all the air sucked out of the jar using a vacuum pump. As the air is pumped out, the
sound level of the ringing bell decreases until we cannot hear it anymore. Which of these
BEST explains why this happens? *
Choose
The gong slowly stops vibrating as the air level decreases.
Less energy is transmitted from the bell to the surrounding as the air decreases
Energy is increasingly absorbed by the glass of the belljar as the amount of air decreases
The energy produced by the gong is absorbed completely by the vacuum that is produced​

Answer 1

Answer:

Less energy is transmitted from the bell to the surrounding as the air decreases

Energy is increasingly absorbed by the glass of the belljar as the amount of air decreases.

Answer 2

Answer:

Less energy is transmitted from the bell to the surrounding as the air decreases

Explanation: