Robinson- Measurement
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| standard of measurement | an exact quantity that people agree to use for comparison
🗑
|
||||
| examples of standard measurement | hands, an arm's length, feet
🗑
|
||||
| two basic systems of measurement | English and metric system
🗑
|
||||
| Why is metric system used in science? | all SI standards are universally accepted and understood by scientists
🗑
|
||||
| System most commonly used in United States | English system
🗑
|
||||
| SI is the standard system used worldwide | Metric system
🗑
|
||||
| two sources of error when making measurements | equipment/ instrument error and human error
🗑
|
||||
| basic unit of length in metric system | meter (m)
🗑
|
||||
| What are more common prefixes for measuring length? | centimeter (cm), millimeter (mm), kilometer (km)
🗑
|
||||
| What piece of equipment is used to measure length? | ruler, meter stick
🗑
|
||||
| Two rules for measuring length accurately? | use metric side of ruler, begin reading at first mark (not edge of ruler)
🗑
|
||||
| Distance around the outside of a figure | perimeter
🗑
|
||||
| formula for perimeter | p= s + s + s + s
🗑
|
||||
| label for perimeter | cm
🗑
|
||||
| area | amount of surface space
🗑
|
||||
| formula for area | A= l x w
🗑
|
||||
| label for area | cm squared
🗑
|
||||
| volume | amount of space an object takes up (occupies)
🗑
|
||||
| formula for volume | V= l x w x h
🗑
|
||||
| label for volume | cm cubed or cc
🗑
|
||||
| mass | the amount of matter in an object (molecules)
🗑
|
||||
| basic unit of mass in metric system | gram (g)
🗑
|
||||
| common prefixes used for mass | milligram (mg) and kilogram (kg)
🗑
|
||||
| Balance | piece of equipment used to measure mass
🗑
|
||||
| tare weight | the weight of paper or container
🗑
|
||||
| 3 rules for using balance accurately | carry using two hands, never place chemicals directly on balance, slide weights to zero before removing object
🗑
|
||||
| weight | the pull of gravity on the object
🗑
|
||||
| metric unit for measuring weight | Newtons (N)
🗑
|
||||
| spring scale | piece of equipment unsed to measure weight
🗑
|
||||
| difference between mass and weight | weight can vary depending on the pull of gravity
🗑
|
||||
| liquid volume | amount of space an object takes up
🗑
|
||||
| basic unit of liquid volume | liter
🗑
|
||||
| common prefixes for liquid volume | milliliter (ml)
🗑
|
||||
| piece of equipment used to measure liquid volume | graduated cylinder
🗑
|
||||
| Why are beakers and flasks not use- need to determine volume | their results are not accurate
🗑
|
||||
| meniscus | curvature of the liquid due to surface tension and capilllary action
🗑
|
||||
| 2 rules for measuring volume accurately | Place on flat surface and read at eye level; take reading from the bottom of meniscus
🗑
|
||||
| water displacement | when an object is placed in water, the object's volume is equal to the amount of water displaced
🗑
|
||||
| volume of jagged stone | Fill graduated cylinder part way. Take reading and record. Add object slowly. Take reading and record. Add object slowly. Subtract first reading from second.
🗑
|
||||
| density | mass per unit volume of a material (amount of molecules in a given space)
🗑
|
||||
| 3 pieces of equipment needed to find density | balance (mass), ruler, or graduated cylinder (volume)
🗑
|
||||
| formula for density | D= m/v, M= V x D, V= m/d
🗑
|
||||
| label for density | g/cm3 or g/cc or g/ml
🗑
|
||||
| density for water | 1 gm/cc
🗑
|
||||
| density of cork | 0.3 g/cc
🗑
|
||||
| copper | 8.9 g/cc
🗑
|
||||
| What determines if an object will float or sink? | its density compared to that of water (1 g/cm3)
🗑
|
||||
| If an object floats | its density is less than water
🗑
|
||||
| If an object sinks | if its density is more than water
🗑
|
||||
| Does density change? | No, it's a constant
🗑
|
||||
| Temperature | How hot or cold an object is- relates to the speed of molecules
🗑
|
||||
| 3 temperature scales | degrees F, C, K
🗑
|
||||
| Which is the SI unit of temperature? | degrees K
🗑
|
||||
| Equipment used to measure temperature? | thermometer
🗑
|
||||
| boiling/condensation point of water | 212 F degrees, 100 C degrees, 373 K degrees
🗑
|
||||
| freezing/melting point of water | 32 F degrees, 0 C degrees, 273 K degrees
🗑
|
||||
| absolute zero | -459.4 F degrees, -274 C degrees, 0 K degrees
🗑
|
||||
| body temp | 98.6 F degrees, 37C degrees, 310 K degrees
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
seagullq
Popular Science sets