Studied by 2 people
what is length
measurement between two points
what is volume
amount of space an object or substance occupies
what makes something standard
primary reference or measurement
what makes a reading precise
several readings close together when measuring the same value
what does calibrated mean
should agree closely with a standard
how do you measure a wire
laid straight close to a ruler, neatly cut ends starting at zero on a ruler
what should you consider when measuring with a ruler
that is is properly calibrated
how can you find the circumference of a cylinder
wrap a thread around it and measure the thread
how do you measure volume of a cube/cuboid
measure length, width, height then find the product
how do you find the volume of other shapes that aren’t like cubes
search its formula and measure what is needed for formula
what is measuring with displacement
using a measuring cylinder for irregular shapes
how do you measure with displacement
fill measuring cylinder 3 time larger with water, immerse object, how much water level increased is the volume
what are SI units
International System of Units
what is the SI unit for metre
m
how many metres in decimetre
0.1
how many metres in centimetre
0.01
SI unit for decimetre
dm
SI unit for centimetre
cm
SI unit for millimetre
mm
how many metres in millimetres
0.001
SI unit for micrometre
0.000001
SI unit for micrometre
µm
how many metre in Kilometre
1000
SI unit for kilometre
km
how many cubic metres in 1 cubic centimetre
0.000001
how many cubic metres in one cubic decimetre
0.001
how do you read a measuring cylinder
bottom of meniscus
what is a meniscus
curved upper surface of a liquid
what is to displace
move something to another place so water moved out the way when an object is lowered into it
what is to immerse
cover something in fluid so that the object is submerged
what method of measurement is this
measuring volume by displacement
what method of measurement is this
measuring volume of a cube/cuboid
SI unit of density
kg/m³
what is mass
quantity of matter a body is composed of
what is density
mass per unit volume or ration of mass to volume for a substance
what is weight
downward force of gravity that acts on an object because of its mass
formula for density
density = mass/volume
what is the symbol for density
ρ
what is the name of this symbol ρ
rho
where does the symbol for density originate from
the Greek language
what is the SI units for density in words
kilograms per cubic metre
which is denser? Gold or silver
gold
how do you find the density of a liquid
place measuring cylinder on balance, set balance to 0, pour liquid, calculate density
how do you find the mass
place object of a balance
what happens when you pour oil in a cup of water
sits at the top of the water because its less dense
what is this
a pendulum
what is at the end of a pendulum
plumb bob
what is an oscillation
a repetitive motion or vibration
what is a period
time it takes for one object to return to its original position
what is a plumb bob
a mass hanging from a string to define a vertical line
how do you use a pendulum to calculate the periods inbetweew
release the pendulum at a point, start a stop clock, count number of oscillations, find average for one period
what is this
analogue clock
what is this
digital clock w
what is analogue
display has hands and is often not very precise
what is digital
display shows numbers and is often precise
what determines what position you are in a race for sprinters
fraction of a second
what determines the position you are in a race for a long distance runner
nearest second
Note 
Flashcard (31)