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What's "a matter" with you!
I got flow yo!
Yeah Boiiiii -yancy
Don't be Dense
Under Pressure
100
These are the four states of matter. Bonus: 100 points A change of state is basically caused by...
What are gases, liquids, solids and plasma? Bonus: An increase or loss in energy of the particles
100
The term used to a substance that does not dissolve in another substance
What is insoluble?
100
Part of a fish anatomy that allows them to rise or sink in water
What is a swim bladder?
100
Explain why diet soda floats and regular soda sinks in water
Regular soda has a lot of sugar, more dense with the dissolved sugar and therefore is more dense than the water and will sink
100
Unit of pressure
What is the Pascal (Pa)?
200
The technical name for going from a gas to a liquid
What is condensation?
200
The site of the Molasses disaster of 1919
What is Boston, MA?
200
If an object neither sinks nor floats it is said to have
Neutral Buoyancy
200
Mr. Head created one of these using an eye dropper and a pop bottle with water BONUS 200 How did it work?
What is a Cartesian diver BONUS: By applying pressure to the bottle you increased the pressure in the water and therefore the air bubble, which made the air bubble smaller and more dense...therefore the eye dropper would sink. Release the pressure and the air bubble expands, less dense and it floats back up.
200
Three technologies that utilize fluids under pressure to help us live our daily lives
Aerosol cans, hydraulic jacks, fire extinguishers, air compressors
300
These are two examples of pure substances
What are elements and compounds?
300
What are three ways to separate mixtures?
distillation magnetism filtration
300
A 4 cm x 4 cm x 5 cm block of wood has a mass of 42.5 g. What is the density of the block of wood?
0.53125 g/cm3
300
Explain why a small rock will sink if thrown into a body of water but a massive boat will float
The boat has a lower average density based on its surface area. More surface area means more buoyant force acting on the boat and more water underneath the boat pushing it up. The shape of the boat also helps the buoyant forces acting on the boat.
300
What are three conditions to compress a gas?
1. Sealed Container 2. There is space between the particles that allow the gas to behave as a gas 3. An external force exerted on the enclosed gas
400
What is the difference between a homogeneous mixture and a heterogeneous mixture. Also include one example of each.
heterogeneous- two or more substances can be seen eg, chocolate chip cookie dough, concrete homogeneous- only one substance can be seen even though the others are still present (Kool-Aid, Coca Cola)
400
What are four things that can affect the rate of dissolving?
-Agitation (stirring) -Temperature -Pressure -Size of the solute
400
The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object
What is Archimedes Principle?
400
The name of the device used to measure the density of the liquid
What is a hydrometer?
400
The name given to a mechanical system that utilizes compressed gas to carry out work
What is pneumatic system?
500
Mayonnaise is an example of this type of mixture
What is an emulsion (colloid)?
500
Term used to describe the general idea of removing salt from water
What is desalinization?
500
What is the difference between a liquids viscosity at various temperature and a gases viscosity at various temperatures?
liquid viscosity decreases at higher temp (particles move faster) gases viscosity increases at higher temp (particles collide more, slow down)
500
How does a submarine work?
Air in the Submarine ballast tanks are decompressed as sea water enters the tanks, the submarine sinks. The sea water is pumped out as air is pumped back into ballast tanks, the submarine rises.
500
A 60,000 N applied force is exerted on a 3 square meter (m2) jack. The hydraulic hose transfers the pressure to a lift which is 7.5 square meters (m2). What is the force (N) output of the lift?
150,000 N