Things in:
[-] is the guidance section for each specification point from the specification
#-# are from the content exemplification for enhanced content guidance (not in specification but
from another document which clarify some specification points)
Calculator guide for mechanics playlist -
https://www.youtube.com/playlist?list=PLd7FwnU6nvjHOsBSD7SnnjYGGVBdiyQDg
AS Level
6.0 Quantities and units in mechanics
6.1 Understand and use fundamental quantities and units in the S.I.
system: length, time, mass. Understand and use derived quantities
and units: velocity, acceleration, force, weight, [Students may be
required to convert one unit into another e.g. km h-1 into m s-1 ]
How do you convert from km h-1 to ms-1 ● 1km/1h
● 1000m/3600s
7 Kinematics
7.1 Understand and use the language of kinematics: position;
displacement; distance travelled; velocity; speed; acceleration.
[Students should know that distance and speed must be positive.]
#Students should know the difference between distance and
displacement.#
,7.2 Understand, use and interpret graphs in kinematics for motion
in a straight line: displacement against time and interpretation of
gradient; velocity against time and interpretation of gradient and
area under the graph.
[Graphical solutions to problems may be required. ]
# Speed-time graphs may also be required.#
Suggest one further refinement to the model ● Use a more accurate value for g (Use
for the parachutist, apart from air resistance, this for most questions)
to make the ● Allow for dimensions of parachutist
model more realistic. ● Parachutist does not fall vertically after
chute opens
● Effect of wind
● Smooth changes in v
● Time for parachute to open
● Deceleration not constant
, 7.3 Understand, use and derive the formulae for constant
acceleration for motion in a straight line.
[Derivation may use knowledge of sections 7.2 and/or 7.4]
#Problems involving vertical motion under gravity could be set.#
● dy/dx = V-u/t = a
● Distance = total area under graph
(i.e. area of rectangle + triangle or
trapezium or rectangle - triangle)
● D = UT + 0.5Th
Using the graph,show that D=UT+0.5aT2 ● Where h is height of triangle
● Using gradient = acceleration sub
in h=aT
● D = UT + 0.5aT2
Using calculus derive v = u+at ● Velocity = ∫acceleration dt
● Velocity = ∫a dt = at + c
● When t = 0, velocity = u
● u = a(0) + c
● u=c
● At time = t, velocity = v
● v = u+at
Using calculus derive s=ut +0.5at2 ● Displacement = ∫(Velocity)
[-] is the guidance section for each specification point from the specification
#-# are from the content exemplification for enhanced content guidance (not in specification but
from another document which clarify some specification points)
Calculator guide for mechanics playlist -
https://www.youtube.com/playlist?list=PLd7FwnU6nvjHOsBSD7SnnjYGGVBdiyQDg
AS Level
6.0 Quantities and units in mechanics
6.1 Understand and use fundamental quantities and units in the S.I.
system: length, time, mass. Understand and use derived quantities
and units: velocity, acceleration, force, weight, [Students may be
required to convert one unit into another e.g. km h-1 into m s-1 ]
How do you convert from km h-1 to ms-1 ● 1km/1h
● 1000m/3600s
7 Kinematics
7.1 Understand and use the language of kinematics: position;
displacement; distance travelled; velocity; speed; acceleration.
[Students should know that distance and speed must be positive.]
#Students should know the difference between distance and
displacement.#
,7.2 Understand, use and interpret graphs in kinematics for motion
in a straight line: displacement against time and interpretation of
gradient; velocity against time and interpretation of gradient and
area under the graph.
[Graphical solutions to problems may be required. ]
# Speed-time graphs may also be required.#
Suggest one further refinement to the model ● Use a more accurate value for g (Use
for the parachutist, apart from air resistance, this for most questions)
to make the ● Allow for dimensions of parachutist
model more realistic. ● Parachutist does not fall vertically after
chute opens
● Effect of wind
● Smooth changes in v
● Time for parachute to open
● Deceleration not constant
, 7.3 Understand, use and derive the formulae for constant
acceleration for motion in a straight line.
[Derivation may use knowledge of sections 7.2 and/or 7.4]
#Problems involving vertical motion under gravity could be set.#
● dy/dx = V-u/t = a
● Distance = total area under graph
(i.e. area of rectangle + triangle or
trapezium or rectangle - triangle)
● D = UT + 0.5Th
Using the graph,show that D=UT+0.5aT2 ● Where h is height of triangle
● Using gradient = acceleration sub
in h=aT
● D = UT + 0.5aT2
Using calculus derive v = u+at ● Velocity = ∫acceleration dt
● Velocity = ∫a dt = at + c
● When t = 0, velocity = u
● u = a(0) + c
● u=c
● At time = t, velocity = v
● v = u+at
Using calculus derive s=ut +0.5at2 ● Displacement = ∫(Velocity)
