I want to improve in physics as this subject came to me this year itself as I am 8th standard please do answer 1st,2nd,3rd
Answers
1)When the ballon filled with air is squeezed the volume of the balloon decreases.
The relation between pressure and volume is inversely proportional
The volume of ballon decreases so the pressure inside the balloon increases and the balloon bursts.
2)This is due to pressure difference.
You might have learnt about the structure of ear?
The pressure inside the ear and atmosphere is almost same on earth.
But while traveling in plane we are moving higher.
As we move high pressure is changed ,decreases so we feel irritation in ears .
At higher altitudes the pressure in ears and atmosphere no more remains same.
3)When we press the bulb of the dropper pressure of the bulb decreases and pressure inside water increases.
Water flows from high pressure to low pressure.So water moves into the bulb.