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Worksheet: Uses of Metals


Which of the following is not a potential advantage of steel over aluminum?

  • AHigher strength
  • BLower cost
  • CHigher melting point
  • DLower density
  • EHigher hardness


Which one of these elements would you not find in a mobile phone?

  • AAluminum
  • BSilicon
  • CCopper
  • DUranium
  • EGold


Metals may be used to transfer thermal energy in heating systems.

Which physical property is most important in the selection of a metal for heating applications?

  • AMelting point
  • BElectrical conductivity
  • CStrength
  • DThermal conductivity
  • EDuctility

What metal is most suitable for use in small-scale heating applications?

  • ACopper
  • BSilver
  • CAluminum
  • DIron
  • ETin


Although steel is sometimes used in place of aluminum in automobiles, aluminum is strongly preferred in aircraft. Which property is most responsible for the difference in the use of metals in these applications?

  • AStrength
  • BCost
  • CElectrical conductivity
  • DDensity
  • EMalleability


The uses of tin, iron, aluminum, and copper partly depend on their reactivities. Using the elemental symbols, arrange these metals in order of increasing reactivity.

  • A A l < F e < C u < S n
  • B C u < A l < S n < F e
  • C F e < S n < C u < A l
  • D C u < S n < F e < A l
  • E A l < C u < F e < S n


Which of the following is not a potential disadvantage of lead relative to tin?

  • AHigher toxicity
  • BHigher density
  • CLower strength
  • DLower reactivity


Which of the following is a major advantage of copper over steel when used as a roofing material?

  • ALower density
  • BHigher thermal conductivity
  • CHigher melting point
  • DHigher corrosion resistance
  • EHigher strength


Which of the following values is generally higher for aluminum alloys than for copper?

  • ACost per kilogram
  • BDensity
  • CMelting point
  • DStrength
  • EElectrical conductivity


For the storage of liquids, cans made from tin are often preferred over those made from steel. What is the main advantage of tin over steel in this application?

  • AHigher strength
  • BLower density
  • CLower thermal conductivity
  • DLower reactivity
  • ELower cost


Aluminum and iron have a range of physical and chemical properties. Based on how the two metals differ, which property can be most easily exploited to separate the two metals when they are being recycled?

  • AMelting point
  • BChemical reactivity
  • CDensity
  • DMagnetism
  • EThermal conductivity


In ancient Rome, water was frequently transported through pipes made from lead.

Which of the following is not a property of lead that makes it more suitable than other structural metals for this application?

  • AHigh malleability
  • BLow reactivity
  • CLow cost
  • DHigh strength

The use of water pipes made from lead is now usually avoided. Which potential hazard is mostly responsible for this change?

  • AWater contamination due to dissolution of lead
  • BLeaks due to melting of lead
  • CWater contamination due to rusting of lead
  • DLeaks due to rusting of lead
  • ELeaks due to cracking of lead