Forces
This is the force that pulls you towards earth.
What is gravity (gravitational force)
These 2 states of matter are considered to be fluids.
What are liquids and gases?
The formula to calculate density
What is d=m/V
Viscosity is...
A measure of how easily a liquid flows
When gravitational force is greater than buoyant force, an object will _________________
What is sink
This is the force that pushes an object up in a fluid
What is buoyancy (buoyant force)
Name a characteristic all fluids have in common.
What is they have no fixed shape (take the shape of their container), they flow.
Mass is commonly measured in these units
What is g, kg
How can you measure viscosity?
What is the flow rate. Using a ramp or bubble test.
When gravitational force is less than buoyant force, an object will _________________
What is float
Referring to an object's weight means you are referring to the force of gravity acting on the mass. What units do we use to measure WEIGHT?
What is Newtons (N)
The thickness of a fluid refers to its:
viscosity
The volume of a solid is measured in this unit
What is cm3
Name a substance that is very viscous.
Molasses,
Honey,
Corn Syrup
When gravitational force is equal to buoyant force, an object will have _________________ buoyancy
What is have neutral buoyance
When a fluid has a high amount of attractive forces between particles, then the substance is: _______.
Viscous
The ability of a fluid to float/suspend an object refers to its:
Buoyancy
An unknown liquid has a mass of 49g and has a volume of 7mL. Calculate density.
What is 7g/mL
As the temperature of a LIQUID is increased, what happens to its viscosity?
It decreases
Massive heavy ships are able to float in water due to having large air pockets and their ability to ______________ _______________.
What is displace water.
Submarines have ballast tanks that fill with either air or water to fall/sink in the ocean. What two forces are interacting to determine the height of the submarine?
Gravity + Buoyant force of the water
Name 2 points of the particle theory
1. S: All particles of a pure substance are the SAME.
2. P: Everything is made out of PARTICLES
3. A: All particles have ATTRACTIVE forces between them.
4. S: All particles have SPACES between them
5. M: All particles are in constant MOTION.
A rock has a density of 2.2 g/cm3 and a volume of 4cm3. Calculate the mass of the rock.
What is 8.8 g
As the temperature of a Liquid is decreased, what happens to its viscosity?
It increases!
State Archimedes Principle.
The buoyant force acting on an object is equal to the weight of the fluid it displaces.