To measure object smaller than a meter but still visible to the naked eye, scientists would use the centimeter or the _________________________
Millimeter
100
Where does the x axis go?
On the bottom - left to right
100
What metric unit of measurement is used to measure mass?
The gram
100
An object has a mass of 10g and a volume of 20cm3. What is it's density? Would it sink or float in water?
0.5g/cm3. It would float.
200
The basic unit of length or distance in the metric system is what?
Meter
200
What is a millisecond?
One-thousandth of a second.
200
Where does the y axis go?
On the left side - vertically or up and down
200
Why are mass and weight different?
Weight depends on the force of gravity, mass does not.
200
A shoe box measures 6cm high, 7cm wide, and 10 cm long. What is its volume?
420 cm3
300
How many meters are in a kilometer?
1,000
300
Why do scientists use SI?
They use SI because it is a standard system of measurement that can be used by all scientists in all countries.
300
When you plot a piece of information on a graph what is it called?
A data point.
300
The amount of space an object takes up is called it's _______________
Volume
300
A metal washer has a mass of 0.27g and a volume of 0.1cm3. What is its density?
2.7g/cm3
400
What is the SI (metric) unit of time?
The second
400
Each unit in the SI system is how many times larger than the next smallest unit.
10 times (10x)
400
Why was it better to draw a straight line in the graphs we made in class rather than draw a "connect the dots" line?
Because it better shows the trend - this is called a "line of best fit"
400
Density is a measure of how much mass is contained in a given __________________
Volume
400
Using the displacement method, an object was dropped into a beaker of water. The water level was 100mL before the object was added, and was 120mL after the object was added. What is the volume of the object?
20 mL or 20 cm3
500
Another name for the metric system is:
SI (International System of Units)
500
What is the official metric unit to measure temperature?
The Kelvin
500
Why would a pie or circle graph be used instead of a data table?
A pie chart or circle graph may be easier to read.
500
How is density calculated?
D=M/V. Remember to drive to the DMV. Denisty is Mass divided by volume.
500
What is the density of an object with a mass of 77g and a volume of 11cm3? Would this object sink or float in water?