measurments Flashcards
what is a measurement
a way to express our observation compared to an accepted standard
what system of measurement does most of the world use
metric system
what system of measurement does the US use
the imperial system
define; length
how long something is
what is the difference between kilometers and meters
100 meters= 1 kilometer
how many centimeters is one meter
100 cm
how many millimeters is one centimeter
10 millimeters
what do we use when we want to measure long distances
kilometers
define; weight
a measure of the gravitational pull of an object
what is the si unit for weight
Newtons (N)
fill in the blank: the closer you are to the center of gravity,
the less you are going to way
what is the si unit for mass
kilograms, grams
define; mass
the number of particles in an object
what is the tool we use to measure weight
scale
what tool do we use to measure mass
triple beam balance
what is the difference between mass and weight
mass does not change like weight does
define; volume
the amount of space that an object takes up
what is the si unit for volume
liquids- liters (L) or Milliliters (M)
solids- cubic centimeter (CM3)
how do you find out the volume of an object
we do length x width x height
define; displacement of water
a way to measure the volume of other solids using water
how many milliliters is one cubic centimeter
one
define; density
how close together are the particles in an object
what are the si units for density
grams/ cubic centimeters
grams/ milometers
kg/ cubic meter
how do you find out the density of an object
you do mass divided by volume
what does it mean if particles in an object are close together
the object has a high density
what is relative density
when you want to compare the density of a few objects to one and other we use flotation
