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Subdecks (8)
chap 1 - physical quantities, units and measurement
physic
16 cards
chapter 8 - general wave properties
physic
4 cards
chapter 7 - thermal processes
physic
16 cards
chap 6 - kinetic particle model of matter
physic
13 cards
chap 5 - energy
physic
18 cards
chap 4 - dynamics
physic
15 cards
chap 3 - forces and pressure
physic
16 cards
chap 2 - kinematics
physic
28 cards
Cards (151)
density =
mass
over volume, unit =
kg/m^3
force =
pressure
x
surface area
, unit =
N
(
Newton
)
distance =
speed
times time, unit =
metres per second
velocity =
distance
divided by
time,
unit =
m/s
acceleration =
change in velocity
divided by
time
, unit =
m/s^2
pressure =
force(weight)
divided by
area
, unit =
Pa
weight =
mass
over
gravitational field
, unit =
N/kg
smaller
the area of contact, the
larger
the pressure
larger the area
contact
, the
smaller
the pressure exerted
larger the
force
applied, the
larger
pressure exerted
smaller the
force
applied, the
smaller
the pressure exerted
density
of material > density of
water
=
sink
density
of material <
density
of water =
float
mass= measured with
beam
/ electronic
balance
weight = measured with
spring balance
gravitational field strength- earth =
10N
/
kg
, moon =
1.6N/kg
gravitational field= region in which a
mass experience force
due to gravitational attraction
force
is a push and pull (not an
energy
)
contact
force = exist when objects are in
contact
non-contact
force = forces do not need objects to be on
contact
mass
not a
force
measure the
amount
of
matter
(
atoms
,
molecules
,
compounds
) in a body
does not change regardless of
location
or
shape
SI UNITS :
kg
scalar
quantity
weight
gravitational
force acting on an object that has
mass
SI UNITS :
N
-->
newton
direction -->
downwards
, towards
centre
of the
earth
vector
quantity
earth´s gravitational field strength =
10N/kg
moon´s gravitational field strength =
1.6N/kg
(
5x
slower)
formula for mass and weight
g=weight/ mass
density formula
density = mass/volume
SI UNIT
kg/m^3
See all 151 cards