chapter 1 test Flashcards
metrics
kilo, hecto, deca, base, deci, cents, milli
qualitative
used adjectives to describe an observation
quantitative
unused numbers to describe an observation
precision
the digress to which experimental results differ
accuracy
how close the results are to standard
calibration
setting a measurement device to zero or to a standard
does density change
no
density
amount of matter in a gives space
density equation
mass/volume
mass
amount of matter in an object
volume
amount of space and object takes up
ordinary numbers to scientific notation
left=positive number is number of spaces moved
scientific notation to ordinary numbers
left= negative than number of spaces is the same as the exponent
multiplying scientific notation
number portion and add exponents
dividing scientific notation
divide number portion and subtract exponents
methane bubbles
ignited and ride the Methane us less dense than air
third rock
different densities, different rocks.
white is most, red is middle, black is least
fish tank
co2 more dense than the space below
silly cylinders
same volume
copper=higher mass more compact
sinking ice
floats in water, sinks in alcohol
Cartesian diver
volume decreased density goes up
increases in density volume doesn’t change
floating pop
fist floats became less sugar
bowl of beans
metal sinks, balls come to surface
egg towels
water is less dense than the egg, salt is more, mixture holds it in the middle
what do you do when measuring
one decimal place more then the scale
percent error
experimental value- true value/ true value( 100)
will fat sink or float
float, muscle sinks
