AQA AS PHYSICS PAPER 2 FINAL PAPER 2026
COMPLETE QUESTIONS AND ANSWERS FULL
SOLUTION GRADED A+
◉ 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
, ◉ pressure. Answer: the amount of force exerted per unit squared of
the area of the object
◉ fluids. Answer: substances that flow because their particles are
able to move around - fluids include liquids and gases
◉ fluid pressure. Answer: p = f ÷ a
(pressure in Pa) = (force perp. to a surface in N) ÷ (area of that
surface in m²)
◉ 1 Pa. Answer: = 1N/m²
◉ liquid pressure. Answer: this depends also on depth and density,
as:
1. the more dense the liquid is, the more collisions happen
2. the more depth there is, the more particles there are above any
given point, so the pressure from above increases as we go deeper
so:
p=hXρXg
(pressure in Pa) = (depth/height in m) X (density in kg/m³) X
(gravitational field strength in N/kg (9.81 on Earth))
◉ atmosphere. Answer: the layer of gas surrounding the Earth
COMPLETE QUESTIONS AND ANSWERS FULL
SOLUTION GRADED A+
◉ 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
, ◉ pressure. Answer: the amount of force exerted per unit squared of
the area of the object
◉ fluids. Answer: substances that flow because their particles are
able to move around - fluids include liquids and gases
◉ fluid pressure. Answer: p = f ÷ a
(pressure in Pa) = (force perp. to a surface in N) ÷ (area of that
surface in m²)
◉ 1 Pa. Answer: = 1N/m²
◉ liquid pressure. Answer: this depends also on depth and density,
as:
1. the more dense the liquid is, the more collisions happen
2. the more depth there is, the more particles there are above any
given point, so the pressure from above increases as we go deeper
so:
p=hXρXg
(pressure in Pa) = (depth/height in m) X (density in kg/m³) X
(gravitational field strength in N/kg (9.81 on Earth))
◉ atmosphere. Answer: the layer of gas surrounding the Earth
