It Matters
Fluid Facts
Go with the Flow
It's the Principle
Under Pressure
Time for your physical.
100
This substance from the list below would float in water.
Beryllium-1.85 g/cm3
Beeswax-0.96 g/cm3
Beryl-2.7 g/cm3
Beryllia-3.0 g/cm3
What is beeswax? To float, the density should be less than 1 g/cm3 (the density of water).
100
If a cork floats in water, we know that the cork must be more dense or less dense than water?
What is less dense?
100
This trait describes why honey does not pour as quickly as water.
What is viscosity?
100
The buoyant force acting on an object in a fluid would be equal to this.
What is the weight of the fluid displaced by the object?
100
Given three scenarios-a diver under water, a person at the beach, and a person on a mountaintop-this person would experience the least amount of pressure.
What is the person on the mountaintop? The higher the elevation, the lower the atmospheric pressure.
100
This type of property can be observed without changing the substance being observed.
What is a physical property?
200
The tendency of a material to crack or break would be this property which is the opposite of elasticity.
What is brittleness?
200
These are the two most plentiful gases in Earth's atmosphere.
What are nitrogen (about 78%) and oxygen (about 21%)?
200
If the temperature of a gas is increased, this will happen to its volume.
What is it will increase also?
200
This principle states that the buoyant force acting on an object is equal to the weight of the water it displaces.
What is Archimedes' Principle?
200
This is defined as force per square unit of area.
What is pressure?
200
Flammability and a tendency to react with oxygen would be examples of this type of property.
What is a chemical property?
300
Any substance that can flow to take on the shape of the container that holds it would be this.
What is a fluid? (any gas or liquid)
300
A cup that weighs 2 N and displaces an amount of water equal to 1N when submerged will do this (float or sink).
What is sink?
300
Decreasing the temperature of a fluid will bring about this change in its pressure.
What is a decrease?
300
His principle states that an increase in the speed of a fluid will decrease the pressure it exerts.
Who is Bernoulli?
300
This is an instrument designed to measure air pressure.
What is a barometer?
300
This type of solid has an orderly, repeating pattern within its atoms or molecules.
What is a crystalline solid?
400
These are the two common types of fluids.
What are gases and liquids?
400
This is the density of water.
What is 1.0 g/cm3? This would be for fresh water. Salt water would have a higher density.
400
When pressure is increased, you would expect to see this change in the volume.
What is a decrease?
400
An airplane experiences lift because the air molecules on top of the wing travel more quickly than those on the bottom. What principle explains why this speed would result in lower pressure?
What is Bernoulli's Principle?
400
This describes how easily a substance is hammered or flattened into a thin sheet.
What is malleability?
400
This is the tendency for matter to expand with heat, leading to consequences such as cracked sidewalks and the buckling of railroad tracks.
What is thermal expansion?
500
If a researcher applies pressure to a substance and measures the amount of pressure it can withstand without breaking or bending, this is being measured.
What is strength?
500
A piece of iron has a weight of 3.5 N when it is in air and a weight of 1.5 N when it is submerged in water. This would be the buoyant force acting on the piece of iron.
What is 2.0 N?
500
This gas law describes the inverse relationship between pressure and volume.
What is Boyle's Law?
500
This principle states the when pressure is applied to a confined fluid, the increase in pressure is applied equally throughout.
What is Pascal's Principle?
500
This describes the property of being able to be pulled or stretched into a thin wire.
What is ductility?
500
This explains why ice is unusual among solids.
What is that it is less dense than it's liquid state?
600
This gas law involves pressure and temperature.
What is Lussac's law?
600
A small canoe has a weight of 550 Newtons. It is floating on the surface of a pool. This is how large the buoyant force is on the canoe.
What is 550 Newtons?
600
A solid that exhibits a random pattern of organization among its atoms or molecules such as rubber or wax would be described as having this property.
What is amorphous?
600
If the wind is blowing and speeding up molecules over the roof of the house, what direction would this cause the roof to move?
What is upward? The pressure decreases where the air molecules are speeding up. This would allow the greater pressure underneath to push the roof upward.
600
Looking at the closed system below, the force applied to the piston on the left is 15 N, and the area of that piston is 1 square meter. The piston on the right is 6 square meters. This would be the amount of upward force exerted by the piston on the right.
What is 90 Newtons?
600
This describes how far an item can be stretched or pulled before it breaks.
What is tensile strength?