Key Terms
In a lab experiment there has to be a detailed written page. On the written page you should include purpose, hypothesis, materials, procedure, observations, conclusion, application, and finally a diagram. Purpose is used to describe why the experiment has to be done. Hypothesis is used before the experiment has started; it is an educated guess or can be said as a prediction. Materials are one of the 4 most important pieces in a lab. Without the materials you don’t know what tools to use for the experiment. Procedure is the second most important part in a lab; it is used to describe how to do the experiment. Without the procedure no one would know what to do and I can assume that experiment won’t turn out so good. Observations, observations are split up into two groups quantitative and qualitative. Quantitative is things measured by volume, mass, numbers, and length. Qualitative is what is observed during the experiment using all 4 senses (see, hear, smell, feel). Conclusion is the second last part to write in a lab, it is telling us if the prediction was correct, and what your group noticed. And finally the application, the application is just a comparison or real life example that can relates to the experiment. And then in the end just need to draw a diagram that looks exactly likes the experiment.
Now these are just key words that should be used in an experiment most often. Flow rate is just a rate in which the liquid can flow. It is measured in volume (mL)/Time (sec). Viscosity, viscosity is a liquids thickness or resistance to flow. Somewhat similar is viscous. Viscous is known as when a liquid is thicker than another liquid it is said to be viscous. Next is the particle theory, this theory is used most often when studying about gravity, density and buoyancy. The particle theory is when the more energy a substance particle has the more space between those particles and the less mass per unit volume (density). Solids, solids are a part of the particle theory because in solids the particles are held in and fixed positions by bonds. Bonds are the things that connect the particles together without that, it would turn into a liquid or gas. Fluids, fluids are anything that can flow, liquid and gases can flow so they are fluids. Solids are not a fluid because it cannot flow.
Formulas:
-D= Mass divided by volume.-FR= volume divided time (sec).-BF=weight air- weight liquid. |
Cc’s, cc’s stands for measurement in cubic centimeters (cm3), (mL). Then next is G/mL and finally mL/S.
D –Density FR-Flow Rate
BF- Buoyant force
What is?
Gravity is described as pushing force down. Buoyancy, buoyancy can be divided into 3 group’s positive, neutral, and negative. Positive is when there is more buoyancy pushing up (buoyant force) than gravity pushing down. Neutral is when gravity and buoyancy are at the same push level. And finally negative is when there is more gravity pushing down than buoyancy pushing up. Weight is measured by force put on gravity on to Newton’s. Lots of people think weight and mass are the same thing well they are not. There is a huge difference see weight is measured in Newton’s and mass is measured by grams. Density, density is a mass of an object per unit volume it can be measured in (G/cm3, Kg/m3, and G/mL). What is matter, matter is any material that occupies space and mass. Matter includes all solids, liquids, and gases. Different forms of matter have different properties, for example no other material has the properties as water.
To find the % above liquid calculation there is a formula. You can find the percent by doing density of object, divided, by density of H2Ox 100/= 0.92/ 1.00x100%
= 92%, 92 are below the surface so then 100-92%.
= 8% is above surface.
Temperature is one of the things that can change objects into different objects, for example solid to liquid, liquid to gas and then flow rate cold slow hot very fast. What are mixtures and heterogeneous. Mixtures are things made out of parts that can be seen are called heterogeneous. And heterogeneous means made out of parts or mixed.
What is SAE; SAE is automotive company that deals with oil pumps, so that there is no internal friction. Now finally the internal friction, internal friction is very important when dealing with liquids and gases. So internal friction is the force resisting from the elements.