PHYSICAL PROPERTIES Flashcards
what is matter?
anything that has mass and occupies space
formula to find density
mass/volume
what is thermal resistance
melts at HIGH temperatures
what is the meaning of malleable?
bend/mould without breaking
what is strength?
withstand force without breaking/changing shape PERMANENTLY
what is hardness?
resist wear and tear and scratches
will a denser liquid be on upper or lower layer in a cup?
lower
do all metals conduct electricity?
yes
is this statement true or false: the melting point and freezing point in all substances are the same
true
what is density
mass of substance per unit of volume
how do you get accurate measurements?
avoid parallax error - take measurement at eye level
what is the precision of an instrument?
smallest measurement an instrument can make
accuracy VS precision
accuracy - how close result of experiment is to true value
precise - how close results are to one another
