Y8U5T7 - Altering the Properties of Metals

What are some ways to alter the properties of a metal?

• Changing its composition, heat treatment, surface treatment, and mechanical working
• Changing its color, weight, and boiling point
• Changing its atomic number, electron configuration, and solubility
• Changing its hardness, conductivity, and malleability
• Changing its reactivity, availability, and extraction method

What factors can affect the rate of rusting of a metal?

• Exposure to water, presence of oxygen, pH level, and the type of metal
• Exposure to sunlight, presence of carbon dioxide, pH level, and the type of metal
• Exposure to heat, presence of nitrogen, pH level, and the type of metal
• Exposure to wind, presence of helium, pH level, and the type of metal
• Exposure to fire, presence of hydrogen, pH level, and the type of metal

How can alloying and galvanizing improve the properties of a metal?

• Alloying can increase strength and corrosion resistance, while galvanizing can provide a protective layer against corrosion
• Alloying can change the color and weight of a metal, while galvanizing can improve its boiling point
• Alloying can alter the atomic number and electron configuration of a metal, while galvanizing can enhance its solubility
• Alloying can affect the hardness and conductivity of a metal, while galvanizing can enhance its malleability
• Alloying can impact the reactivity, availability, and extraction method of a metal, while galvanizing can improve its melting point

What is the process of mixing a metal with other elements to create a new material with improved properties called?

• Alloying
• Galvanizing
• Heat treatment
• Mechanical working
• Rusting

Which heat treatment involves heating and cooling a metal to improve its strength, hardness, and ductility?

• Quenching and tempering
• Annealing
• Case hardening
• Normalizing
• Precipitation hardening

Which surface treatment involves coating a metal with a layer of zinc to protect it from corrosion?

• Galvanizing
• Anodizing
• Electroplating
• Powder coating
• Enameling

Which process involves subjecting a metal to mechanical forces to change its shape or properties?

• Mechanical working
• Heat treatment
• Surface treatment
• Alloying
• Galvanizing

Which metal is more prone to rusting due to its higher reactivity?

• Iron
• Copper
• Gold
• Aluminum
• Silver

Which term refers to the process of modifying the surface of a metal to improve its properties?

• Surface treatment
• Alloying
• Galvanizing
• Mechanical working
• Heat treatment

Which metal is an alloy of copper and zinc, and is stronger and more corrosion-resistant than pure copper?

• Brass
• Bronze
• Stainless steel
• Nickel silver
• Pewter