Materials Revision Quiz

What is the definition of heat of combustion?

• The level of electric charge that passes through a material

• The amount of heat produced when a substance burns

• The total number of electrons that an atom gains or loses

• The level of poison in a substance

What does the oxidation state indicate?

• The amount of heat a material can conduct

• The level of poison in a material

• The total number of electrons an atom gains or loses to form a chemical bond

• The resistance of a material in ohms

Which of the following materials is likely to be a good conductor of electricity?

• Oak wood

• Stainless steel

• Glass

• Copper

What is resistance measured in?

• Volts

• Ohms

• Amps

• Watts

What can happen if too much current flows through a material?

• It can improve the efficiency of the circuit

• It can reduce the oxidation state

• It can lead to failure of the circuit

• It can increase the heat of combustion

What is magnetism in materials such as iron and steel caused by?

• The level of poison in the material

• The motion of an electrically charged particle

• The resistance of the material

• The heat of combustion

What does Young's modulus measure in a material?

• The color and texture of the material

• The ability of a material to conduct electricity

• How easily a material can be stretched or deformed when stress or load is applied

• The temperature at which a material melts

What property of a material describes its ability to return to its original shape after forces are applied to it?

• Malleability

• Elasticity

• Ductility

• Hardness

Which of the following is NOT a mechanical property of stainless steel?

• Elasticity

• Rust

• Strength

• Toughness

Which of the following materials is NOT a good thermal conductor?

• Gold

• Silver

• Plastic

• Copper