SIG FIGS
Leading zeros are only significant when ______________________.
They are never
3.445 + 34.5
37.9
What is density?
The amount of matter in an object.
How many feet are in a mile?
5280 ft
what is 345 in scientific notaiton?
3.45 x 10^2
How many significant figures are in 200.03?
5
What is the solution to 77.8 + 98.534 + 6 =
200
Convert 130 cm to DaM.
.130 DaM
340 cm x .39370 in/ 1 cm = 133 inches
What do you do before you make a hypothesis?
Observe
How many significant figures are in 230?
3
3.4 x 67.8 =
230
Convert .00000456km to mm
4.57mm
How many centimeters are in 3 foot?
3 ft x 30.48 cm / 1 ft = 91.44 cm
Which variable is changed? Which is observed?
independent/dependent
How many significant figures are in 34.999999999999990
17
3.3 x 56.77 x 2878
What is the density of a material if its mass is 2.89g and volume is 4.98 cm^3? (USE SIG FIGS)
.580 g/cm^3
If you are traveling at 35 cm/minute how fast are you going in ft/sec?
0.019 ft/sec
What is 78989898989898 in scientific notation?
7.8989898989898 x 10^13
If there is a trialing zero it is____________________________.
Significant if there is a decimal point
What are the rules for addition and multiplication when using sig figs!?
addition - least amount PAST THE DECIMAL
multiplication- least number of sig figs!
The mass of a block of wood is 7.8 g/cm^3. The volume is 4.7 cm^3, what is the mass. (use sig figs)
37 grams
Your car has a fuel efficiency rating of 35.1 miles per gallon. Convert this to kilometers per liter.
14.9 km/L
What are the parts of an experiment that stay the same called?
Controls