Science Vocab: Chapter 4

Question 1

What is any substance that can flow and take the shape of the container that holds it?

Answer 1

Fluid

Question 2

What is the amount of force per unit area applied to an object’s surface?

Answer 2

Pressure

Question 3

What is the weight of all the air above you to you surface area?

Answer 3

Atmospheric pressure

Question 4

What is an upward force applied by a fluid on an object in the fluid?

Answer 4

Buoyant force

Question 5

What is the weight of the fluid that an object displaces is equal to the buoyant force acting on the object?

Answer 5

Archimedes’ principle

Question 6

What states that when pressure is applied to a fluid in a closed container, the pressure increases by the same amount everywhere in the container?

Answer 6

Pascal’s principle

Question 7

What states that the pressure of a fluid decreases when the speed of that fluid increases?

Answer 7

Bernoulli’s principle

Question 8

What is a force that opposes the motion of an object through a fluid?

Answer 8

drag force