PRESSURE IN LIQUID & GASSES

Question 1

What makes the balloon have its shape?

Answer 1

Air particles colliding with the balloon wall

Question 2

What happens when we keep pumping air into the balloon?

Answer 2

The more air particles we blow into the balloon, the more collisions happen with the balloon wall and it expands more.

Question 3

More collision = ?

Answer 3

Higher pressure

Question 4

Lesser air particles = ?

Answer 4

Higher altitude

Question 5

What pulls air particles toward the Earth?

Answer 5

Gravity

Question 6

The air towards the Earth’s surface is ________

Answer 6

compressed

Question 7

If the particles are closer together, then the pressure is _________

Answer 7

bigger

Question 8

Lower number of air particles = ?

Answer 8

Lower number of collisions

Question 9

The number of air particles remains the same, when the number of collisions inside the bag is greater than the outside, it ________

Answer 9

expands

Question 10

Higher temperature = ?

Answer 10

Faster particles and greater number of collisions

Question 11

What is upthrust produced by?

Answer 11

Water particles colliding with the surface of the boat

Question 12

Deeper you go underwater =

Answer 12

Higher pressure

Question 13

What does liquid pressure depend on?

Answer 13

The weight of the water above it

Question 14

Is a solid compressible?

Answer 14

No

Question 15

Is a liquid compressible?

Answer 15

No

Question 16

Is gas compressible?

Answer 16

Yes, as there’s more space between particles

Question 17

What do we use to measure pressure in liquid and gasses?

Answer 17

A pressure gauge

Question 18

SI unit is..?

Answer 18

Pascal