What is the main reason a balloon stays inflated?

Understanding Pressure and Balloons

Interactive Video
•
Physics, Science
•
5th - 8th Grade
•
Hard

Mia Campbell
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The material of the balloon is very strong.
There is air inside the balloon pushing against its walls.
The balloon is tied tightly.
The balloon is filled with water.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the air outside the balloon play?
It pushes on the inside of the balloon.
It has no effect on the balloon.
It makes the balloon heavier.
It keeps the balloon from floating away.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the balloon when the external pressure is removed?
It stays the same size.
It shrinks.
It expands.
It pops immediately.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the external pressure removed in the demonstration?
By heating the balloon.
By using a vacuum chamber.
By adding more air inside the balloon.
By puncturing the balloon.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do the balloons expand in the vacuum chamber?
The temperature inside the chamber increases.
The balloon material becomes more elastic.
The pressure inside the balloon becomes greater than the pressure outside.
The air inside the balloon is removed.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the balloons when air is slowly let back into the vacuum chamber?
They stay the same size.
They pop.
They shrink back to their normal size.
They expand further.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why won't you hear much if the balloons pop in the vacuum chamber?
The balloons are made of a special material.
Sound does not travel in a vacuum.
The vacuum chamber is soundproof.
The balloons are very quiet.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a vacuum chamber in the demonstration?
To change the color of the balloons.
To heat the balloons.
To remove the air outside the balloons.
To add more air inside the balloons.
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