AQA GCSE COMBINED SCIENCE: TRILOGY
8464/P/1H HIGHER TIER PHYSICS PAPER
1H PAPER & MARK SCHEME PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ Why can current only flow in one direction in a diode?.
Answer: The resistance in the other direction is too great
◍ What is inside a fission reactor.
Answer: - Uranium fuel rods with water at high pressure- Fission neutrons
are slowed down by collisions with the water controlling the fission- Water
is pumped through the core where is evaporates and goes the the generator-
From there it is cooled and re-enters the reactor
◍ List the different power stations.
Answer: - nuclear- fossil fuels- geothermal- hydroelectric- wave/tidal-
biomass- solar- wind
◍ What is Vaporisation in terms of latent heat.
Answer: Liquid to gas
◍ Particles in a liquid.
Answer: - strong forces between particles (less than solid)- Particles can
move freely- When heated, they gain enough energy to break away
◍ What is radioactive activity measured in.
Answer: Counts per second or bequerel
◍ What is Dalton's atomic theory?.
Answer: - atoms are tiny particles- Atoms cannot be broken down further-
, Atoms of an element are the same-
◍ How to work out what the new pressure on a gas will be (Boyle's Law).
Answer: P₁V₁=P₂V₂
◍ What is an electric field.
Answer: An area around a charge which exerts a force on a second charge.
◍ What does Ohm's law state?.
Answer: V = IR
◍ How to measure the density of a regular object.
Answer: - work out the volume by multiplying the Length, Height and
Width- Work out the mass by weighing the object- Use the density triangle
to figure out the density (m/V)
◍ What pressure is there on the earths surface.
Answer: 101,325 Pa
◍ What is the control variable in an experiment.
Answer: The variable that we must keep the same in order to keep the test
fair
◍ How does medical imaging wok.
Answer: - Tracer is injected into body that binds to area being investigated-
Gamma rays are emitted that can be detected by a gamma camera
◍ What is Boyle's Law?.
Answer: P 1/vp=k/vThe pressure of a gas is inversely proportional to the
volume of the gas at constant temperature and for a fixed mass of gas
◍ What are the isotopes of uranium that are used in fission.
Answer: 235. Exits more commonly as 238 so needs to be enriched
◍ What is beta radiation?.
Answer: Fast moving electron (mass of 0, charge of -1), has medium
ionising power
◍ What are the main uses of radiation in medicine.
, Answer: - Medical Imaging- Radiotherapy
◍ What is a non-ohmic conductor?.
Answer: a resistor where the voltage is not proportional to the current
◍ Power equation.
Answer: Power = energy x time
◍ What happens in alpha decay?.
Answer: Two protons and 4 neutrons are released
◍ What are the 3 states of matter?.
Answer: Solid, Liquid and Gas
◍ What is the range of Beta particles and what can stop it.
Answer: 1m, 5mm of aluminium
◍ What are the properties of Gamma radiation.
Answer: - High energy electromagnetic radiation- 0 charge- 0 RAM- Very
weakly ionising- Not deflected by magnetic field
◍ What is fusion in terms of latent heat?.
Answer: Solid to liquid
◍ What is its equation?.
Answer: I = Q ÷ t or Q = It
◍ What is pressure measured in.
Answer: Pascals. 1 Pa=1N/m²
◍ Uses of them (in order of alpha, beta and gamma)?.
Answer: Smoke detectors, thickness gauge and radiotherapy (as well as
sterilisation).
◍ What is alpha radiation?.
Answer: Helium nucleus (mass of 4, charge of +2), has high ionising power
◍ Charges of particles?.
Answer: Proton = +1, Neutron = 0, Electron = -1
8464/P/1H HIGHER TIER PHYSICS PAPER
1H PAPER & MARK SCHEME PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ Why can current only flow in one direction in a diode?.
Answer: The resistance in the other direction is too great
◍ What is inside a fission reactor.
Answer: - Uranium fuel rods with water at high pressure- Fission neutrons
are slowed down by collisions with the water controlling the fission- Water
is pumped through the core where is evaporates and goes the the generator-
From there it is cooled and re-enters the reactor
◍ List the different power stations.
Answer: - nuclear- fossil fuels- geothermal- hydroelectric- wave/tidal-
biomass- solar- wind
◍ What is Vaporisation in terms of latent heat.
Answer: Liquid to gas
◍ Particles in a liquid.
Answer: - strong forces between particles (less than solid)- Particles can
move freely- When heated, they gain enough energy to break away
◍ What is radioactive activity measured in.
Answer: Counts per second or bequerel
◍ What is Dalton's atomic theory?.
Answer: - atoms are tiny particles- Atoms cannot be broken down further-
, Atoms of an element are the same-
◍ How to work out what the new pressure on a gas will be (Boyle's Law).
Answer: P₁V₁=P₂V₂
◍ What is an electric field.
Answer: An area around a charge which exerts a force on a second charge.
◍ What does Ohm's law state?.
Answer: V = IR
◍ How to measure the density of a regular object.
Answer: - work out the volume by multiplying the Length, Height and
Width- Work out the mass by weighing the object- Use the density triangle
to figure out the density (m/V)
◍ What pressure is there on the earths surface.
Answer: 101,325 Pa
◍ What is the control variable in an experiment.
Answer: The variable that we must keep the same in order to keep the test
fair
◍ How does medical imaging wok.
Answer: - Tracer is injected into body that binds to area being investigated-
Gamma rays are emitted that can be detected by a gamma camera
◍ What is Boyle's Law?.
Answer: P 1/vp=k/vThe pressure of a gas is inversely proportional to the
volume of the gas at constant temperature and for a fixed mass of gas
◍ What are the isotopes of uranium that are used in fission.
Answer: 235. Exits more commonly as 238 so needs to be enriched
◍ What is beta radiation?.
Answer: Fast moving electron (mass of 0, charge of -1), has medium
ionising power
◍ What are the main uses of radiation in medicine.
, Answer: - Medical Imaging- Radiotherapy
◍ What is a non-ohmic conductor?.
Answer: a resistor where the voltage is not proportional to the current
◍ Power equation.
Answer: Power = energy x time
◍ What happens in alpha decay?.
Answer: Two protons and 4 neutrons are released
◍ What are the 3 states of matter?.
Answer: Solid, Liquid and Gas
◍ What is the range of Beta particles and what can stop it.
Answer: 1m, 5mm of aluminium
◍ What are the properties of Gamma radiation.
Answer: - High energy electromagnetic radiation- 0 charge- 0 RAM- Very
weakly ionising- Not deflected by magnetic field
◍ What is fusion in terms of latent heat?.
Answer: Solid to liquid
◍ What is its equation?.
Answer: I = Q ÷ t or Q = It
◍ What is pressure measured in.
Answer: Pascals. 1 Pa=1N/m²
◍ Uses of them (in order of alpha, beta and gamma)?.
Answer: Smoke detectors, thickness gauge and radiotherapy (as well as
sterilisation).
◍ What is alpha radiation?.
Answer: Helium nucleus (mass of 4, charge of +2), has high ionising power
◍ Charges of particles?.
Answer: Proton = +1, Neutron = 0, Electron = -1
