Download A rough estimate or calculated guess

rate of increase in
speed (= change in
speed/time)
drag that a moving
object will
experience when
moving through the
air
when two forces are
the same strength,
but working in
opposite directions
a force that pulls on
an object
acceleration
air resistance
balanced forces
attraction
a force that needs to
touch an object
before it can affect it
(e.g. friction)
air resistance and
water resistance are
both sometimes
called_____
any substance that
will return to its
original shape and
size after it has been
stretched or
squashed
how much longer a
object is when it has
a force applied
compared to its
length with no force
applied
contact force
drag
elastic
extension
the force of
attraction between
any two objects
speed at a particular
moment
speed that stays the
same
squeeze
gravity
instantaneous
speed
constant speed
compress
force exerted by an
object caused by an
equal and opposite
force
the measure of how
much mass is in a
volume
stationary
the amount of liquid
or gas moved out of
the way by a solid
floating or immersed
in it
reaction
density
at rest / stopped
displacement
rate at which an
object slows down;
negative
acceleration. often
measured in ms-2
energy created by
movement
amount of matter an
object has
energy stored in a
stretched or
compressed spring
deceleration
kinetic energy
mass
elastic potential
energy
a unit for measuring
mass (g)
a force that resists
motion
piece of equipment,
containing a spring,
used to measure
forces
a push or pull in a
particular direction
gram
friction
force meter /
Newton meter
force
force exerted by an
object (e.g. the
planet) caused by an
equal and opposite
force – Newton’s 3rd
law
force in object that
opposes them being
stretched
= mg
= mass (m) x
acceleration due to
gravity (g)
two or more forces
that do not cancel
out
support force
tension force
weight
unbalanced
force
a unit for measuring
mass (kg); there are
1000 g in 1 kg
force caused by the
air which causes an
object to rise
upwards
substance (normally
a liquid) used to
reduce friction
a force that attracts
objects made out of
iron
kilogram
lift
lubricant
magnetism
amount of matter
that something is
made of - measured
in grams (g) and
kilograms (kg)
the unit of force
another name for a
force meter
a force that can
affect something
from a distance
mass
Newton (N)
Newton meter
non contact force
a force which acts to
repel or push away
an object
force which exists in
response to another
force acting on an
object - always acts
in opposite direction
to force causing it
force which acts to
oppose motion
how fast something
is moving, often
measured in metres
per second (ms-1)
repulsion
reaction
resistance
speed
when two forces
working in opposite
directions are not
the same strength
shape which is
designed to have
very little resistance
to its motion
a pushing force
streamlined
thrust
unbalanced
forces
amount of force with
which gravity pulls
something towards
the Earth - measured
in Newtons (N)
force that is made
when all the forces
acting on an object
are joined together
a force is what
causes a mass to
accelerate; the
equation is…
weight
resultant
F = ma
a force in a rope or
cable being pulled
tension
zero resultant
force