Density and Buoyancy
Density Equations
Changes of State
Fluids
Viscosity
100

What is buoyancy?

It is the tendency for the object to rise or float in a fluid. 

(The upward force exerted on an object in a fluid. )

100

What is the equation for density?

Density = Mass/volume

100

What are the 3 states of matter

Solid, liquid, gas

100

What is a fluid?

Any substance that flows

100

What is viscosity

A measure of a fluid's resistance to flow

200

What is buoyant force?

The upward force exerted on objects submerged in fluids

200

What is the density of an item that has a mass of 500g and a volume of 50 g/mL?

10g/mL

200

Explain melting

The change from solid to liquid

200

What is a solid?

The state of matter of a substance that has a definite shape and volume

200

True of False:

Does viscosity apply to a solid?

False - solids do not flow

300

What is density?

The amount of mass in a certain unit volume of a substance

300

What is the density of an item that has a mass of 70g and a volume of 103cm3?

0.68 g/cm3

300

Explain evaporization

the change from liquid to gas

300

What is a liquid?

The state of matter of a substance that has a definite volume but no definite shape

300

What is Pascal's Law

Any pressure exerted on a fluid will be distributated evenly throughout the fluid.

400

What is mass?

The amount of matter or particles within in a substance

400

What is the volume of an item that has a mass of 2 g and a density of 19.32 g/cm3?

0.1 cm3

400

Explain condensation

the change from gas to liquid

400

What is a gas?

The state of matter of a substance that has neither a definite shape nor a definite volume

400

What type of system can be described by liquids that are under pressure in a confined space (ex. oil in tubes). 

Hydraulic systems

500

What is volume?

A measurement of the amount of space occupied by a substance

500

What is the mass of an item that has a density of 0.0013g/mL and a volume of 550 mL?

0.715 g

500

Explain freezing

Change from liquid to solid

500

Give the 5 major points of the particle theory

1) All matter is made up of very small particles

2) All particles in a pure substance are the same

3) There is space between the particles

4) Particles are always moving

5) Adding heat to particles will make them move faster

500

What fluid does pneumatic system use

Gas (air)