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Viscosity
Density
Three states of matter
Flow rates and Fluids
Forces and Buoyancy
100
What is viscosity?
The "thickness" or "thinness" of a fluid; how easily it flows.
100
What is density?
The amount of mass in a volume. How tightly packed the material is in a substance.
100
What are the three states of matter?
The three states of matter are solids, liquids and gases.
100
What is a flow rate?
A flow rate is the amount of fluid that flows past a point in a given amount of time.
100
What is a force? What is buoyancy?
A force is anything that causes a change in motion of an object. A push or pull. Buoyancy is the upward force on an object that is submerged in or floating on fluids.
200
Name two substances that have a low viscosity and two that have a high viscosity.
Low: Water, pop, juice, gasoline,etc.... High: Molasses, Honey, etc...
200
Solids, liquids, and gases all have different densities. List the three of them in order from the lowest density to the highest density.
Gases, liquids, then solids.
200
What state of matter has an indefinite shape and volume.
Gas
200
What is a fluid?
A fluid is anything that flows; liquid or gases
200
If a small child was pushing on one side of a box and a adult was pushing on the other side who would be applying the most amount of force?
The adult would be pushing with a greater force than the child.
300
If you wanted to make a pancake with a higher viscosity would you add more water or pancake mix?
Pancake mix.
300
If you heated a gas would it make the gas have a higher or lower density?
It would make it a higher density because the particles move farther apart making it lighter.
300
Why can't the particles in a liquid hold their shape?
The particles in a liquid cannot hold their shape because the particles are touching each other but they can slide past one another.
300
List five types of fluids?
Gasoline, carbon dioxide, oxygen, water, juice, honey, paint, nail polish, pop, soap, glue... etc....
300
If a two people are pushing a box at an equal force and the box did not move would that be a balanced or an unbalanced force?
It would be a balanced force.
400
What are the four factors that affect viscosity?
The four factors are temperature, concentration, particle size, and attractive forces
400
The air in car tires during winter deflate a tiny bit. Would this make the car tire more or less dense?
It would make the car tire less dense.
400
Why do solids hold their shape when stacked on top of each other?
They hold their shape because they have tightly packed particles meaning they have a definite shape.
400
How does viscosity relate to the flow rate of a fluid?
Viscosity relates to flow rate of a fluid because if a liquid has a higher viscosity the flow rate will be lower, slower, and vice versa.
400
What is the formula to find force?
Force= Pressure x Area
500
If a liquid had tighter packed particles in it would the substance have a lower or higher viscosity?
It would have a higher viscosity.
500
What is the formula to find density?
The formula is Density= Mass/Volume
500
What is three of the five major points of the particle theory of matter?
1. All matter is made up of particles 2. All particles in a pure substance are the same. Different substances are made of different particles. 3. There is space between the particles. 4. The particles are always moving. As particles gain energy ,they move faster. (vice versa) 5. The particles in a substance are attracted to one another. The strength of the attractive force depends on the type of particle.
500
What is the formula to figure out the flow rate of a fluid.
Flow rate= Distance/Time
500
Define mass and weight? Why does the mass stay the same if you go anywhere in the universe but the weight does not?
Mass is the amount amount of matter inside an object. Measured in kilograms. (kg) Weight is the measure of force of gravity acting on the mass of an on object. Measures in Newtons. (N) The mass stays the same because the mass is the matter inside of the object meaning it can't change. The weight changes because it is the force of gravity acting on an object. The force of gravity is different everywhere in the universe putting more force on you making you weigh more.