Q.1
If a potential difference is applied to a metal...
  • the fixed electrons will stay in place and no current will pass through the metal
  • the negative ions will move through the metal carrying the electrical current
  • the delocalised ions will move through the metal carrying the electrical current
  • the delocalised electrons will move through the metal carrying the electrical current
Q.2
Metals are malleable because...
  • a large amount of energy is required to slide one layer of electrons over another
  • little energy is required to slide one layer of electrons over another
  • little energy is required to slide one layer of ions over another layer
  • a huge amount of energy is required to slide one layer of ions over another layer
Q.3
What does malleable mean?
  • Can be stretched into wires
  • Can be bent or hammered into shape
  • Is easily shattered
  • Is shiny
Q.4
What type of bonding is present in metals?
  • Covalent
  • Ionic
  • Hydrogen
  • Metallic
Q.5
The bonding in metals is due to a strong attraction between...
  • positive metal ions and a sea of negative electrons
  • positive metal atoms and a sea of negative electrons
  • negative metal atoms and a sea of positive electrons
  • negative metal ions and a sea of negative electrons
Q.6
One drawback of superconductors is...
  • their behaviour is erratic
  • they only work at VERY low temperatures
  • they could enable super fast transmission of electricity
  • they could enable loss free power transmission
Q.7
Pick the correct statement about the arrangement of particles in a metal.
  • The particles are arranged randomly and far apart
  • The particles are arranged regularly and far apart
  • The particles are arranged regularly and close together
  • The particles are arranged randomly and close together
Q.8
Metals have...
  • low melting points because they have weak bonds
  • low melting points because they have strong bonds
  • high melting points because they have weak bonds
  • high melting points because they have strong bonds
Q.9
Superconductors...
  • work at any temperature
  • conduct heat better than other materials
  • have little or no resistance
  • conduct an orchestra really well
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