Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
IPS/Physics Exam
| Question | Answer |
|---|---|
| When reading instruments, read to the... | Smallest Scale Division (SSD) |
| When reading an instrument, estimate _ place(s) to the right. | 1 |
| If the SSD is 1, read to... | 0.1 |
| What is the amount of space that something takes up? | volume |
| What measurement do we use for volume? | cm(3) |
| What is the formula for the volume of a rectangular solid? | l x w x h |
| What substances have a miniscus that curves up in a graduated cylinder? | Substances like mercury |
| How do we find the volume of an irregular solid? | Liquid displacement |
| What is the process of liquid displacement | a)Find volume of the liquid alone [VL] b)Find volume of liquid + solid [VL + S] c)Volume of solid= VS= VL+S-VL |
| When can liquid displacement not be used? | If it floats, is a sponge-like object, or dissolves. |
| How do you find the volume of a granular solid? | Also use liquid displacement. |
| What refers to the slight variations in measured results? | Experimental Error |
| Experimental error is caused by: | limitations of measuring instruments, differences in human judgement, or manufacturing variations in supposedly identical objects |
| What is not a REAL error? | experimental error |
| Where does experimental error show up? | Data that is similar, but not identical |
| How do we handle EE? | by eliminating values that are far off from the norm |
| What is the amount of matter itself in an object? | Mass |
| What do we measure mass in? | grams |
| what is a change in form, not in identity? | physical change |
| In what kind of change is it easy to conceive how to reverse the change? | physical change |
| What is a change in identity and form? | Chemical Change |
| What kind of change is usually not easy to reverse? | Chemical change |
| In a closed system, the total mass of all the reactants before a physical or chemical change is the same as the total mass of all products after the change | Law of Conservation of Mass |
| When putting numbers into scientific notation, increase the exponent if the number gets ___. | smaller |
| When putting numbers into scientific notation, decrease the exponent if the number gets ___. | larger |
| 30800 in s.n. | 3.08 x 10(4) |
| 356 x 10(12) | 3.56 x 10(14) |
| What are the parts of a lab report? | purpose, procedure, results, class data, error analysis, discussion, conclusion |
| What is a property that depends on the amount and size of the sample | Extensive Property |
| What is a property that does not depend on the amount of size of sample? | Characteristic Property |
| Examples of Characteristic Properties | Color, appearance, density |
| A and B are only made of the same substance if all of their ____ properties are the same. | Characteristic |
| What concept explains that solids get bigger when heated? | Thermal expansion of solids |
| FP of water | 0 degrees C, 32 degrees F |
| BP of water | 100 degrees C, 212 degrees F |
| Room temp | 25 degrees C, 70 degrees F |
| Body temp | 37 degrees C, 98.6 degrees F |
| What is characteristic if you stay at the same temperature? | Density |
| Unlike solids and liquids, gases all basically expand ______. | at the same rate |
| The___ increase during thermal expansion, so the ____ decreases because of the change. | Volume; Density |
| Change from gas to solid | deposition |
| change from solid to liquid | melting |
| change from liquid to gas | boiling/evaporation |
| change from solid to gas | sublimation |
| change from solid to liquid | freezing |
| change from gas to liquid | condensation |
| what is an example of a material that sublimes under atmospheric conditions? | dry ice |
| what is an example of deposition? | The white frosty stuff that appears on the outside of a warm object that is put into a freezer |
| What substance sublimes under atmospheric pressure at a little above room temp? | iodine |
| what do we call the salt in salt water? | solute |
| what do we call the water in salt waiter? | solvent |
| A solution is ____ when there is little solute compared to the solvent. | diluted |
| A solution is ____ when there is lots of solute compared tot the solvent. | saturated |
| What do we call the concentration of a saturated solution? | solubility |
| Is solubility a characteristic property? | yes |
| How do you find the concentration of a solution? | mass of solute divided by volume of solvent |
| As the temp of a liquid increases, the solubility of a ____ also increases. | solid |
| What do we call the raising of water temp by artificial means? | thermal pollution of water |
| To ____ a mixture of substances, you have to identify some characteristics in which the substances differ, and "exploit" the difference in the characteristic to achieve the separation. | separate |
| What do we call the property that makes something thick and immiscible? | viscosity |
| What is the process of fractional distillation? | boil and recondense vapor |
| What substances are soluble in water? | sugar and citric acid |
| What substances are soluble in methanol? | citric acid and moth flakes |
| What substances can be separated by fractional distillation? | sodium chloride, sugar, sodium nitrate, potassium nitrate |
Created by:
suetholzm
Popular Physics sets