36. How does pressure affect the density of a liquid?
a) Higher pressure increases the density of a liquid
b) Higher pressure decreases the density of a liquid
c) Pressure has no effect on the density of a liquid
d) It depends on the temperature of the liquid
37. What is the pressure inside a container if a force of 2000 N is applied to an area of 4 m²?
a) 500 Pa
b) 200 Pa
c) 800 Pa
d) 2000 Pa
38. Which of the following is an example of pressure in solids?
a) Water flowing through a pipe
b) A solid block on a table
c) A falling apple
d) A floating balloon
39. How does pressure affect the speed of sound in a solid?
a) Higher pressure increases the speed of sound
b) Higher pressure decreases the speed of sound
c) Pressure has no effect on the speed of sound
d) It depends on the density of the solid
40. What is the pressure inside a container if a force of 300 N is applied to an area of 3 m²?
a) 100 Pa
b) 300 Pa
c) 900 Pa
d) 1000 Pa
