Materials Engineering

Which material would work best for a sports bottle?

• fabric

• paper

• glass

• plastic

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NGSS.MS-ETS1-1

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Car tyres are made of ________________

• Glass

• Metal

• Rubber

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NGSS.MS-PS1-3

Why is the correct choice and processing of materials crucial in engineering?

• To ensure that materials can withstand the forces and stresses placed on them

• To reduce the cost of building materials

• To make the materials look more aesthetically pleasing

• To follow environmental regulations strictly

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NGSS.HS-ETS1-3

NGSS.HS-PS2-3

Which properties are engineers concerned about when selecting materials?

• Color, taste, smell, and sound

• Strength, toughness, hardness, elasticity

• Price, brand, availability, and packaging

• Design, trends, fashion, and popularity

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NGSS.HS-ETS1-2

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What causes the corrosion of metals and metal alloys?

• Exposure to ultraviolet rays

• Attack by chemical substances and action of atmospheric oxygen in the presence of water

• High electrical resistance

• Strong magnetic fields

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NGSS.HS-PS1-2

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What is the term used to describe the weakening or destruction of non-metallic materials by chemical substances?

• Corrosion

• Degradation

• Resistivity

• Insulation

What happens to soft magnetic materials such as soft iron when the magnetic field is removed?

• They retain their magnetism permanently.

• They become permanent magnets.

• They cease to be magnetized.

• They become more efficient by adding silicon or nickel.

What can be added to pure iron to make magnetic materials more efficient?

• Cobalt

• Carbon

• Silicon or nickel

• Steel

What is the primary focus of materials engineering?

• Designing new materials with specific properties

• Studying the environmental impact of materials

• Analyzing the cost-effectiveness of materials

• Exploring the historical use of materials

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NGSS.HS-PS1-2

Which of the following is a common method used in materials engineering to improve material properties?

• Annealing

• Painting

• Polishing

• Welding