States of Matter - Exam
  • 1. What are the three common states of matter?
A) Plasma, gas, solid
B) Solid, liquid, plasma
C) Solid, liquid, gas
D) Liquid, gas, plasma
  • 2. Which state of matter has a definite shape and volume?
A) Liquid
B) Plasma
C) Gas
D) Solid
  • 3. Which state of matter takes the shape of its container but has a definite volume?
A) Gas
B) Liquid
C) Plasma
D) Solid
  • 4. What causes matter to change from one state to another?
A) Speed and volume
B) Temperature and pressure
C) Energy and mass
D) Density and color
  • 5. What phase change occurs when a solid turns directly into a gas without passing through the liquid phase?
A) Evaporation
B) Condensation
C) Sublimation
D) Deposition
  • 6. What is the state of matter with high kinetic energy and weak intermolecular forces, but can conduct electricity?
A) Plasma
B) Solid
C) Gas
D) Liquid
  • 7. Which state of matter has neither a definite shape nor volume?
A) Liquid
B) Solid
C) Gas
D) Plasma
  • 8. What is the process called when a solid turns into a liquid?
A) Melting
B) Condensation
C) Vaporization
D) Freezing
  • 9. What is the process called when a liquid changes into a gas at the surface?
A) Evaporation
B) Sublimation
C) Condensation
D) Deposition
  • 10. What is an example of a magnetic state that depends on the alignment of intrinsic magnetic moments?
A) Ferromagnetism
B) Plasma
C) Crystalline solid
D) Liquid crystal
  • 11. Which exotic state of matter is formed at extremely low temperatures?
A) Bose–Einstein condensate
B) Neutron-degenerate matter
C) Quark-gluon plasma
D) Fermionic condensate
  • 12. Which term is sometimes used as a synonym for state of matter but can refer to different phases within the same state?
A) Gas
B) Liquid
C) Solid
D) Phase
  • 13. How many crystal structures does ice have that exist at various temperatures and pressures?
A) One
B) Ten
C) Fifteen
D) Two
  • 14. What type of solid lacks long-range order and is not a thermal equilibrium ground state?
A) Liquid crystals
B) Plasma
C) Crystalline solids
D) Amorphous solids
  • 15. What happens to iron's crystal structure when it is heated above 912 °C?
A) It changes from body-centred cubic to face-centred cubic
B) It becomes amorphous
C) It remains body-centred cubic
D) It transforms into a liquid
  • 16. What is the process called when gases change directly into solids?
A) Melting
B) Sublimation
C) Deposition
D) Freezing
  • 17. What is the term for a gas at temperatures and pressures above its critical point where it cannot be liquefied by pressure alone?
A) Supercritical fluid
B) Plasma
C) Liquid
D) Vapor
  • 18. Which substance is commonly used in a supercritical state to extract caffeine from coffee?
A) Oxygen
B) Water
C) Nitrogen
D) Carbon dioxide
  • 19. What can cause a gas to become plasma?
A) Compression alone.
B) High voltage or extremely high temperatures.
C) Low temperature and pressure.
D) Decreasing kinetic energy.
  • 20. What is the term for a gas below its critical temperature that can be liquefied by compression alone?
A) Plasma
B) Vapor
C) Supercritical fluid
D) Liquid
  • 21. What happens to the volume of a liquid compared to its corresponding solid, with water being an exception?
A) The volume becomes indefinite.
B) The volume remains unchanged.
C) The volume is usually greater.
D) The volume is usually less.
  • 22. What is the term for intermediate steps when a change of state occurs in stages?
A) Plasma states
B) Mesophases
C) Sublimation phases
D) Crystalline states
  • 23. Which state is associated with the appearance of superconductivity?
A) Superconductive states
B) Plasma states
C) Ferromagnetic states
D) Glass states
  • 24. What type of crystal has long-range positional order but allows rotational freedom for molecules?
A) Orientational glass
B) Quark–gluon plasma
C) Plastic crystal
D) Spin glass
  • 25. What is the expected core composition of brown dwarfs?
A) Liquid helium
B) Solid iron
C) Carbon dioxide ice
D) Metallic hydrogen
  • 26. What is a common use for superconducting magnets?
A) Magnetic resonance imaging machines
B) Electric heaters
C) Light bulbs
D) Heating elements
  • 27. In which type of star is electron-degenerate matter found?
A) Black holes
B) White dwarf stars
C) Neutron stars
D) Red giant stars
  • 28. In a chemical equation, what symbol denotes an aqueous solution?
A) (s)
B) (l)
C) (g)
D) (aq)
  • 29. What is a fermionic condensate composed of?
A) Magnetic fields
B) Fermions
C) Bosons
D) Metals
  • 30. In the chain-melted state, which metal behaves as both a liquid and solid?
A) Sodium
B) Copper
C) Iron
D) Potassium
  • 31. What type of magnetism is characterized by two networks of magnetic moments that are opposite but unequal?
A) Quantum spin liquid
B) Ferromagnetism
C) Antiferromagnetism
D) Ferrimagnetism
  • 32. How are the magnetic domains oriented in a quantum spin liquid?
A) In one fixed direction
B) Antiparallel
C) Randomly
D) Parallel
  • 33. In which state is magnetic disorder frozen?
A) Plastic crystal
B) Spin glass
C) Fermionic condensate
D) Superfluid
  • 34. What happens to free neutrons outside an atomic nucleus in a neutron star?
A) Inverse decay overtakes their decay
B) They decay faster than usual
C) They remain stable indefinitely
D) They transform into protons
  • 35. What phenomenon involves photons developing apparent mass and forming 'molecules'?
A) Photonic matter
B) Chain-melted state
C) Quantum Hall state
D) Superglass
  • 36. What is the Meissner effect associated with?
A) Fermionic condensates
B) Superconductors excluding magnetic fields
C) Bose–Einstein condensates
D) Helium-4 superfluidity
  • 37. What is the term for a molecular solid with frozen rotational freedom in a disordered state?
A) Plastic crystal
B) Orientational glass
C) Quark–gluon plasma
D) Spin glass
  • 38. How does degeneracy affect more massive brown dwarfs in terms of size?
A) They become much smaller
B) Their size is unpredictable
C) They expand rapidly
D) They are not significantly larger
  • 39. What is strange matter suspected to contain that makes it heavier than common quark matter?
A) Strange quarks
B) Gluons
C) Electrons
D) Neutrinos
  • 40. What is the nature of quark liquid currently?
A) Identical to electron plasma
B) Well understood and documented
C) A type of ordinary matter
D) Presently unknown
  • 41. What principle supports degenerate matter?
A) The Pauli exclusion principle
B) Archimedes' principle
C) Hooke's law
D) Newton's law of universal gravitation
  • 42. Which compound is an example of a ferrimagnet?
A) Nickel(II) oxide (NiO)
B) None of the above
C) Solid iron
D) Magnetite (Fe3O4)
  • 43. At what temperature does a substance typically exist as a solid?
A) Near absolute zero
B) Boiling point
C) Room temperature
D) Melting point
  • 44. When was the phenomenon of superconductivity discovered?
A) In 1911
B) In 1925
C) In 1995
D) In 1986
  • 45. How do pairs of fermions behave in a fermionic condensate?
A) With infinite thermal conductivity
B) As independent fermions
C) As superconductors
D) As composite particles that behave like bosons
  • 46. What force confines quarks into hadrons in regular cold matter?
A) Strong force
B) Gravitational force
C) Weak force
D) Electromagnetic force
  • 47. What is the temperature range for the nematic phase of para-azoxyanisole?
A) 140–160 °C
B) 100–120 °C
C) 90–110 °C
D) 118–136 °C
  • 48. Which symbol represents a gas in chemical equations?
A) (g)
B) (aq)
C) (l)
D) (s)
  • 49. What characterizes a string-net liquid?
A) It is a phase of matter at the Hagedorn temperature.
B) Atoms have an unstable arrangement but maintain an overall pattern.
C) Atoms align in a perfect grid with opposite electron spins.
D) It exhibits properties similar to quark-gluon plasma.
  • 50. What is the half-life of free neutrons outside an atomic nucleus?
A) Approximately 10 minutes
B) 1 hour
C) Instantaneous decay
D) 24 hours
  • 51. At what temperature does helium-4 form a superfluid?
A) Above 30 K
B) Above 273.15 K
C) Below 164 K
D) Below 2.17 K
  • 52. What type of solid material exhibits a glass transition when heated towards the liquid state?
A) Amorphous metal
B) Glass
C) Plastic crystal
D) Crystal
  • 53. Which phenomenon is explained by helium-4 atoms forming a Bose–Einstein condensate?
A) Superfluid state of helium-4
B) High-temperature superconductivity
C) Fermionic condensation
D) Meissner effect
  • 54. What is the term for states that are not composed of molecules and organized by different forces?
A) Superconductivity
B) Non-classical states
C) Mesophases
D) Classical states
  • 55. What happens to electrons in neutron-degenerate matter?
A) They combine with protons via inverse beta-decay
B) They form a new element
C) They remain bound to atoms indefinitely
D) They are expelled from the star
  • 56. What structures do block copolymers form due to microphase separation?
A) Nanometre-sized structures.
B) Crystalline solids.
C) Macroscopic layers.
D) Uniform liquid mixtures.
  • 57. Which phase of matter is characterized by superfluidity and a frozen amorphous structure?
A) Chain-melted state
B) Photonic matter
C) Quantum Hall state
D) Superglass
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