Definitions
What is the definition of a fluid?
What's another way to say something is 'viscous' ?
What is the liquid is 'thicker'
What is the formula for density?
a. density = mass x volume
b. density = mass / volume
c. density = mass + volume
d. density = mass - volume
What is b) density = mass / volume
What is the pressure if force is 50 N and area if 25 m2 ?
What is 2 Pa
This force pushes upward on an object placed in a fluid, causing it to float or sink.
What is buoyant force
Which state(s) of matter is considered a fluid?
liquids and gases
Fill in the blank:
The more thick a liquid is, the -------- viscous and the --------- the flow rate?
What is the more thick a liquid is, the more viscous and the lower the flow rate?
A block of wood has a mass of 50 g and a volume of 20 cm3. What is the density of the wood?
What is 2.50 g/cm3
Fill in the blank:
As altitude increases, air pressure ---------
What is air pressure decreases
Which of the following would increase the chances that an object will sink?
a) increasing the density of the object
b) decreasing the density of the object
c) decreasing the buoyant force
d) both a) and c)
What is d) - both a) and c)
(increasing the density of the object & decreasing the density of the object)
What term does this refer to: the amount of force applied to a particular area
pressure
Which liquid has lower resistance?
Liquid A: 15 m/s
Liquid B: 5 m/s
What is Liquid A
Rank the order from top to bottom when you create a density column with the following liquids:
Rubbing alcohol: 0.79 g/mL
Mercury: 13.6 g/mL
Honey: 1.42 g/mL
What is:
1 - Rubbing alcohol: 0.79 g/mL
2 - Honey: 1.42 g/mL
3 - Mercury: 13.6 g/mL
If a person is standing on a snowy surface with snowshoes, why do they not sink into the snow?
Snowshoes increase the surface area, reducing the pressure the person applies onto the snow.
When was the wooden door in Titanic more bouyant? When only Rose was laying on it, or when Rose and Jack tried laying on it together?
What is when only Rose was laying on it
What is the difference between viscosity and flow rate?
What is viscosity refers to the thickness of a substance, but flow rate refers to the speed that substance flows
How can we test or compare the speeds of two different viscous liquids?
What is a ramp test or viscosity race.
What is more dense?
A peeled orange or an unpeeled orange?
What is a peeled orange
What is there is higher pressure at both of these depth/altitudes
What is the object floats
What is the particle theory of matter?
What is all matter is made up of particles
What is particles are always moving
etc
How would you increase the flow rate of a viscous liquid?
What do crew members change about submarines to make them sink to the bottom of the ocean floor?
What is they fill the ballast tanks with water, which increases the mass and in turn, the density of the submarine. When the tanks are filled with water, the density of the submarine becomes greater than the density of the water.
Why did OceanGate implode? State the relationship between pressure and depth, and explain why we see this relationship in the ocean.
The submarine experiences more pressure the deeper it sinks into the ocean. We see this because there is more water on top of the submarine applying an inward force onto the submarine.
After the Titanic hit the iceberg, it still took the 3 hours for it to sink! What happened at that 3 hour mark for it to finally sink?
After the Titanic hit the iceberg, it took three hours for the ship to sink. During that time, water flooded the lower compartments, increasing the ship's weight. As the weight grew, it eventually exceeded the buoyant force that was keeping the ship afloat. Once the buoyant force was no longer sufficient to support the Titanic, it finally sank.