PHYSICS PAPER 2 2026 FULL REVISION PACK
QUESTIONS AND SOLUTIONS
◉ gravity ideas on the moon and Earth. Answer: - the gravity of the
moon is less than on Earth as the moon has less mass than the Earth
- one would weigh less on the moon than on Earth, but still have the
same mass
- there is no air resistance on the moon as there is no air, so two
objects dropped simultaneously, regardless of their weight/mass,
would hit the ground simultaneously, as there is no force working
against gravity
◉ resultant forces. Answer: the eventual force of two forces acting
on one object
- if the forces are acting in the same/opposite directions, just
add/subtract
- if they are acting at an angle to each other:
- draw a scale drawing of all the forces acting
- measure the distance from tip to tip of the forces; thats the
resultant force
- use a protractor to find a bearing for the force, as force is a vector
(so has to have direction too)
,◉ resolving forces. Answer: to resolve a force you want to split it
into its horizontal and vertical components:
- draw a diagram with the info you have
- label the sides
- find one component using trig
- find the other component using trig
◉ work done. Answer: the transfer of energy in order to move
something - it is a form of energy, and so is a scalar, as energy is also
a scalar
◉ work (Nm or J). Answer: = force (N) X displacement (m) (can be
rearranged)
◉ 1 Nm (newtonmetre). Answer: = 1 J (joule)
◉ F∝e → F=ke. Answer: the extension of the spring is directly
proportional to the force exerted on it
◉ extension (e). Answer: the difference between the original length
and the extended length
◉ spring constant (k). Answer: how much the spring stretches with
a given force
, ◉ Hooke's law. Answer: states that the strain in a solid (e.g. a spring)
is proportional to the applied stress (within the elastic limit of that
solid)
◉ Ee (elastic energy). Answer: = 0.5ke²
(the energy topic is covered in more detail in paper 1)
◉ moment. Answer: the moment of a force is the turning effect it has
on an object connected to a pivot - for an object with a pivot to be in
equilibrium the moments must be equal
◉ M (Nm). Answer: = F (N) X d (m) (the unit for moments is Nm and
not J as a moment is a turning effect, not an energy)
◉ gears. Answer: use the principle of moments to transmit a turning
effect - different sized gears can be used to change a moment - a gear
turns in the opposite direction to the gear it is attached to - gear =
cog
◉ centre of mass. Answer: the point in an object at which its mass
can be thought of as being concentrated
QUESTIONS AND SOLUTIONS
◉ gravity ideas on the moon and Earth. Answer: - the gravity of the
moon is less than on Earth as the moon has less mass than the Earth
- one would weigh less on the moon than on Earth, but still have the
same mass
- there is no air resistance on the moon as there is no air, so two
objects dropped simultaneously, regardless of their weight/mass,
would hit the ground simultaneously, as there is no force working
against gravity
◉ resultant forces. Answer: the eventual force of two forces acting
on one object
- if the forces are acting in the same/opposite directions, just
add/subtract
- if they are acting at an angle to each other:
- draw a scale drawing of all the forces acting
- measure the distance from tip to tip of the forces; thats the
resultant force
- use a protractor to find a bearing for the force, as force is a vector
(so has to have direction too)
,◉ resolving forces. Answer: to resolve a force you want to split it
into its horizontal and vertical components:
- draw a diagram with the info you have
- label the sides
- find one component using trig
- find the other component using trig
◉ work done. Answer: the transfer of energy in order to move
something - it is a form of energy, and so is a scalar, as energy is also
a scalar
◉ work (Nm or J). Answer: = force (N) X displacement (m) (can be
rearranged)
◉ 1 Nm (newtonmetre). Answer: = 1 J (joule)
◉ F∝e → F=ke. Answer: the extension of the spring is directly
proportional to the force exerted on it
◉ extension (e). Answer: the difference between the original length
and the extended length
◉ spring constant (k). Answer: how much the spring stretches with
a given force
, ◉ Hooke's law. Answer: states that the strain in a solid (e.g. a spring)
is proportional to the applied stress (within the elastic limit of that
solid)
◉ Ee (elastic energy). Answer: = 0.5ke²
(the energy topic is covered in more detail in paper 1)
◉ moment. Answer: the moment of a force is the turning effect it has
on an object connected to a pivot - for an object with a pivot to be in
equilibrium the moments must be equal
◉ M (Nm). Answer: = F (N) X d (m) (the unit for moments is Nm and
not J as a moment is a turning effect, not an energy)
◉ gears. Answer: use the principle of moments to transmit a turning
effect - different sized gears can be used to change a moment - a gear
turns in the opposite direction to the gear it is attached to - gear =
cog
◉ centre of mass. Answer: the point in an object at which its mass
can be thought of as being concentrated
