Data Collection
Why is it important to have multiple trials
Outliers: more trials gives us a more accurate average
What variables affect density
Mass and volume
What SI unit measures distance
meters (m)
What does the prefix "k" stand for in scientific notation
103
What is the definition of distance
The total length of the path taken
Why is percent error important
It tells us how far from the expected result our measured result was.
What is the equation for density
rho = m/V
What SI unit measures time
seconds (s)
What does the prefix "m" stand for in scientific notation
10-3
What is the definition of displacement
The length of the straight line from point A to point B
How is percent error calculated
(calculated - measured)/measured
What are the units of density
g/mL, g/cm3, g/L, kg/L, kg/m3
What SI unit measures force
Newtons (N)
What prefix means 10-9
nano
What is the equation for speed
Change in distance over change in time (distance)/(time)
What is standard deviation used for
Reproducibility of results
Daily Double
How does the density of ice compare to the density of liquid water
What SI unit measures charge
Coulombs (C)
How many grams are in 1.5 kg
1500 g
What is the equation for velocity
Change in displacement over change in time (displacement)/(time)
What is the equation for the standard deviation
The sum of the square of the difference between the trials and the average divided by the number of trials.
If water and oil are put in the same container, which one will rise to the top and why
The oil because it is less dense
What are the units for coefficients
none
How many hectoliters are in 35 deciliters
0.035 hL
If a car is moving at a constant 20 m/s, how far will it go in 10 seconds
200 m