Matter = anything that has mass and takes up space (volume)

Volume

measure of how much space an object takes up.

common measuments: cm³, m³, km³, mL, L

cm³ = mL

How to find...
Regular Shaped Object (rectangle)

use a formula.

ex) v=lxwxh

v=3cmx5cmx4cm

v=60cm³

Liquids

use a glassware.

-graduated cylinder

Irregular Shaped Objects

use principal of displacement.

Vobject = Vobject + water - Vwater original

Mass

a measure of how much matter an object contains.

common measurements: mg, g, kg, ton

How to find

use scale.

Weight

a direct measurement of the force(pull) of gravity on an object.

common measurement: N (newton)

How to find

use a formula.

Fg = Mg

(Force of gravity = Mass×Gravity)

gravity of Earth = 9.81m/s²

Density

mass per unit volume.

(how much mass something as compared to its volume.)

On May 11th, we did an experiment about flow rate and viscosity

Question: Does temperature affect the viscosity of oil? If so, how?

To find out the answer for this question, we used oil, a plastic cup with a hole in the bottom, a beaker, a thin beaker, a retort stand with a ring clamp, a stopwatch, a thermometer, cold water, and a hot plate.

How did we do that experiment

We poured more than 60ml oil in the thin beaker.

We poured it into the cup by covering the hole in the cup with a finger, and removed the finger quickly so that oil can start timing.

As we removed the finger, we timed how long does it take for oil to reach 50ml.

We put the beaker with oil in cold water and waited for the temperature of oil to reach colder than 10℃.

We repeated 2&3 with cold oil.

We made warm oil and repeated 2&3 again.

Results: The temperature affects the viscosity of oil. As the temperature of oil increases, the viscosity of oil decreases. (As the temperature of oil increases, the flow rate of oil increases.)

Today, we'll write about the class on ~April.22nd~

Fluid- Substances that take up space (liquids and gases that flow).

Particle Theory- A model to help us understand the differences between fluids and solids. Also it aids in understanding and predictiong fluid behavior.

All matter is composed of particles.

Particles are in constant motion.

There are forces of attraction among particles.

Flow rate- The speed that a fluid moves in a given amount of time.

Viscosity- The physical property of a liquid that limits its ability to flow.

low viscosity = fast-flowing (ex:water)

high viscosity = low-flowing (ex:honey)

Non-Newtonian- A fluid that is made up of two different phases and does not conform to the rules of proportionally of a Newtonian fluid. When we put pressure onto it, it will cause more noncrystalline structures to form solid. (The fluid we used was made up of potato starch, water, and food color.)

AN EXPERIMENT IN LAB