|
The temperature at which
all molecular motion is zero - zero Kelvin |
|
The rate of change of
velocity = change in v / time |
|
9.81 ms-2 |
|
the ______ of a v/t graph
gives the distanced travelled |
|
The number of C-12 atoms in
12g of Carbon-12 |
|
equal to the molar gas
constant (R) divided by the Avagadro constant (L) |
|
the position within any
object through which all its weight can be considered to act.
The point within any object where its mass can be replaced by a
particle of equal mass to the object. |
|
The principle that
describes how energy and momentum are not created or destroyed |
|
Forces that all act in one
plane (as if acting on the surface of a flat piece of paper) |
|
Two equal turning forces
sharing a common pivot |
|
The vector distance an
object has moved away from any fixed position |
|
A collision in which
kinetic energy is conserved |
|
The capacity to do work |
|
Forces and moments that are
balanced are said to be in _____ |
|
Measured in Newtons - it is
related to the acceleration required to change the motion of any object
considering its mass |
|
The ______ of a v/t graph
gives the acceleration |
|
The gain or loss of energy
due to height |
|
Q = mcq
- what is Q? |
|
A gas which obeys Boyles
Law - pV is a constant |
|
In projectile motion
problems the horizontal and the vertical motion are considered to be
_______ and only linked by time |
|
A collision in which
kinetic energy is not conserved |
|
1/2 m v2 |
|
the m in 1/2 m v2 |
|
The constant obtained from
the ideal gas equation = pV/T |
|
If we weigh out the atomic
or molecular mass of any element we have obtained a ______ of that
substance |
|
The magnitude of a turning
force = Force x perpendicular distance to pivot |
|
Mass x velocity - the rate
of change of this = Force |
|
Acceleration that changes
in time - so SUVAT equations can not be applied |
|
The rate of conversion of
energy - measured in Joules |
|
The magnitude of a Force
spread over an area |
|
Motion of any object when
freely moving in a gravitational field with independent horizontal and
vertical motion |
|
A force or velocity is said
to be ______ when we calculate its effective magnitude in any chosen
direction |
|
the rms velocity of gas
molecules - which averages the molecular motion in 3 dimensions |
|
Any quantity that has a
magnitude - but no direction |
|
The c in Q = mcq
- related to a substance's change of heat per unit mass when its
temperature is altered |
|
The energy required to
change a substance from one state to another (eg. Melting or freezing) |
|
The scalar quantity giving
the magnitude of velocity = s/t |
|
Q = mcq
- what is q
? |
|
The top speed of any object
- when the frictional forces balance the driving forces |
|
The turning action of a
force (usually when an object is being rotated around a central pivot) |
|
Acceleration that does not
change in time - and so SUVAT equations can be applied |
|
Any quantity that has a
both magnitude and direction |
|
The rate of change of
distance in any given direction |
|
The amount of space a
substance occupies |
|
The gain or loss of
mechanical energy = to the energy changed |