AQA GCSE COMBINED SCIENCE TRILOGY
HIGHER TIER PHYSICS PAPER 1H TEST 2
ANSWERS GRADED A+
⩥ Particle Model. Answer: Representation of particles explaining states
of matter.
⩥ Melting Point. Answer: Temperature where solid turns to liquid.
⩥ Boiling Point. Answer: Temperature where liquid turns to gas.
⩥ Diffusion. Answer: Movement of particles from high to low
concentration.
⩥ Osmosis. Answer: Water movement through a semi-permeable
membrane.
⩥ Density. Answer: Mass per unit volume of a substance.
⩥ Specific Heat Capacity. Answer: Energy required to raise temperature
of a substance.
,⩥ Physical Change. Answer: Change affecting form, not chemical
composition.
⩥ Chemical Change. Answer: Change resulting in new chemical
substances.
⩥ Energy Transfer. Answer: Movement of energy between systems.
⩥ Cell Replication. Answer: Process by which cells divide and
reproduce.
⩥ Universal Genetic Code. Answer: Pattern of nucleotides in DNA
across all organisms.
⩥ Particle Theory. Answer: Explains states of matter changes like
melting.
⩥ States of Matter. Answer: Solid, liquid, gas, defined by particle
arrangement.
⩥ Freezing Point. Answer: Temperature where liquid turns to solid.
,⩥ Condensation. Answer: Change from gas to liquid state.
⩥ Density Equation. Answer: Density (ρ) = mass (m) / volume (V).
⩥ SI Units. Answer: Standard units for scientific measurements.
⩥ Gas Pressure. Answer: Force exerted by gas molecules on container
walls.
⩥ Kinetic Energy. Answer: Energy of motion, related to temperature.
⩥ Internal Energy. Answer: Energy stored in a system by particles.
⩥ Conservation of Mass. Answer: Mass remains constant during
physical changes.
⩥ Physical Change. Answer: Change that does not alter substance's
chemical properties.
⩥ Chemical Change. Answer: Change resulting in new substances being
formed.
, ⩥ Average Speed of Molecules. Answer: Increases with higher gas
temperature.
⩥ Collisions in Gas. Answer: Molecules collide with walls, creating
pressure.
⩥ Regular Solid Density Measurement. Answer: Use dimensions to
calculate volume.
⩥ Irregular Solid Density Measurement. Answer: Use displacement
technique for volume determination.
⩥ Heating a System. Answer: Increases internal energy and temperature.
⩥ Strength of Forces. Answer: Determines melting and boiling points of
substances.
⩥ Vernier Callipers. Answer: Tool for precise measurement of
dimensions.
⩥ Displacement Technique. Answer: Method for measuring volume of
irregular objects.
⩥ Melting. Answer: Transition from solid to liquid state.
HIGHER TIER PHYSICS PAPER 1H TEST 2
ANSWERS GRADED A+
⩥ Particle Model. Answer: Representation of particles explaining states
of matter.
⩥ Melting Point. Answer: Temperature where solid turns to liquid.
⩥ Boiling Point. Answer: Temperature where liquid turns to gas.
⩥ Diffusion. Answer: Movement of particles from high to low
concentration.
⩥ Osmosis. Answer: Water movement through a semi-permeable
membrane.
⩥ Density. Answer: Mass per unit volume of a substance.
⩥ Specific Heat Capacity. Answer: Energy required to raise temperature
of a substance.
,⩥ Physical Change. Answer: Change affecting form, not chemical
composition.
⩥ Chemical Change. Answer: Change resulting in new chemical
substances.
⩥ Energy Transfer. Answer: Movement of energy between systems.
⩥ Cell Replication. Answer: Process by which cells divide and
reproduce.
⩥ Universal Genetic Code. Answer: Pattern of nucleotides in DNA
across all organisms.
⩥ Particle Theory. Answer: Explains states of matter changes like
melting.
⩥ States of Matter. Answer: Solid, liquid, gas, defined by particle
arrangement.
⩥ Freezing Point. Answer: Temperature where liquid turns to solid.
,⩥ Condensation. Answer: Change from gas to liquid state.
⩥ Density Equation. Answer: Density (ρ) = mass (m) / volume (V).
⩥ SI Units. Answer: Standard units for scientific measurements.
⩥ Gas Pressure. Answer: Force exerted by gas molecules on container
walls.
⩥ Kinetic Energy. Answer: Energy of motion, related to temperature.
⩥ Internal Energy. Answer: Energy stored in a system by particles.
⩥ Conservation of Mass. Answer: Mass remains constant during
physical changes.
⩥ Physical Change. Answer: Change that does not alter substance's
chemical properties.
⩥ Chemical Change. Answer: Change resulting in new substances being
formed.
, ⩥ Average Speed of Molecules. Answer: Increases with higher gas
temperature.
⩥ Collisions in Gas. Answer: Molecules collide with walls, creating
pressure.
⩥ Regular Solid Density Measurement. Answer: Use dimensions to
calculate volume.
⩥ Irregular Solid Density Measurement. Answer: Use displacement
technique for volume determination.
⩥ Heating a System. Answer: Increases internal energy and temperature.
⩥ Strength of Forces. Answer: Determines melting and boiling points of
substances.
⩥ Vernier Callipers. Answer: Tool for precise measurement of
dimensions.
⩥ Displacement Technique. Answer: Method for measuring volume of
irregular objects.
⩥ Melting. Answer: Transition from solid to liquid state.
