AS Solid materials 1. Divide the cards up

AS Solid materials 1. Divide the cards up

AS Solid materials 1. Divide the cards up equally among the group 2. Take it in turns to read out ONE property. The highest value wins the other cards. 3. Answer ALL questions at the bottom of each card Materials Top Trumps Materials Top Trumps Zinc Copper Density 7,135 kgm-3 Malleability 6 Density 8,940 kgm-3 Malleability 7 Hardness 2.5 Ductility 5 Hardness 3 Ductility 9 Young modulus 96 GPa Flexibility 2 Young modulus 120 GPa Flexibility 3 Strength 200x106 Pa Toughness 8 Strength 220x106 Pa Toughness 6 1. QUESTION: What is the definition of a brittle material? 2. QUESTION: How is the stiffness of a material calculated? Materials Top Trumps Materials Top Trumps Carbon Fibre Lead Density 1,950 kgm-3 Malleability 4 Density 11,340 kgm-3 Malleability 9 Hardness 2 Ductility 0

Hardness 1.5 Ductility 2 Young modulus 181x109 Nm-2 Flexibility 2 Young modulus 16x109 Nm-2 Flexibility 4 Strength 4300 x106Pa Toughness 9 Strength 100 x106Pa Toughness 4 3. QUESTION: How is stored elastic energy calculated from a graph of Force applied (N) over extension of a material (m)? 4. QUESTION: What is hysteresis? How would this appear in a graph? Materials Top Trumps Materials Top Trumps Stainless Steel Aerogel Density 8000 kgm-3 Malleability 6 Density 1 kgm-3 Malleability 0 Hardness 4.5 Ductility 7 Hardness 0 Ductility 0 Young modulus 110 GPa Flexibility 2 Young modulus 1 MPa Flexibility 0 Strength 2000 x106 Pa Toughness 8 Strength 0.4x106 Pa

Toughness 1 5. QUESTION: Explain why the units of the Young Modulus can be either Nm-2 or Pa. Materials Top Trumps 6. QUESTION: Why might a material be described as tough? Materials Top Trumps Titanium Iron Density 4,500kgm-3 Malleabilit y 3 Density 7,800 kgm-3 Malleability 6 Hardness 6 Ductility 7 Hardness 4 Ductility 5 Young modulus 310x109 Nm-2 Flexibility 2 Young modulus 210x109 Pa Flexibility 3 Strength 10.4PGa Toughness 9 Strength 3x106 Pa Toughness 7 7. Task: Draw a stress strain graph for titanium. 8. Question: The compressive strength of marble is 112MPa. If a marble column holding up a roof of a temple is a cylinder supporting 1.43x107N, what is its minimum diameter? Materials Top Trumps Materials Top Trumps Rubber Graphite Density 1,100 kgm-3 Malleability 10 Density 2.7x103 kgm-3 Malleability 0 Hardness 2

Ductility 0 Hardness 1.2 Ductility 0 Young modulus 0.01x109 Nm-2 Flexibility 7 Young modulus 9.2Nm-2 Flexibility 2 Strength 15x106 Pa Toughness 7 Strength 1x106 Pa Toughness 2 9. QUESTION: How is Youngs Modulus calculated? Materials Top Trumps 10. TASK: Draw a stress-strain graph and plot two lines of different stiffness Materials Top Trumps Diamond Graphene Density 3.5x103 kgm-3 Malleabilit y 0 Density 10 kgm-3 Malleabilit y 2 Hardness 10 Ductility 0 Hardness 10 Ductility 0 Young modulus 1220x109 Nm-2 Flexibility 0 Young modulus 1000 GPa Flexibility 1 Strength 1600x106 Pa Toughness 10 Strength

130 GPa Toughness 10 11. QUESTION: Why is glass said to be brittle? 12. QUESTION: Name 3 malleable materials and state the definition of malleable. Materials Top Trumps Materials Top Trumps Pine wood Glass Density 510 kgm-3 Malleability 2 Density 2.8x103 kgm-3 Malleability 1 Hardness 2.5 Ductility 0 Hardness 5.5 Ductility 0 Young modulus 9 GPa Flexibility 4 Young modulus 80x109 Nm-2 Flexibility 2 Strength 40X106 Pa Toughness 5 Strength 33x106 Pa Toughness 8 13. QUESTION: What are the units of tensile strain? 14. Task: Draw a stress-strain graph for glass Materials Top Trumps Materials Top Trumps Brass Bone Density 8520 kgm-3 Malleability 6 Density 2000 kgm-3 Malleability 3 Hardness 3 Ductility

3 Hardness 3 Ductility 0 Young modulus 100x109 Nm-2 Flexibility 2 Young modulus 14 x109 Nm-2 Flexibility 4 Strength 550x106 Pa Toughness 8.5 Strength 130x106 Pa Toughness 8 15. QUESTION: What is necking and when does it occur in material tests? 16. QUESTION: How is compressive stress calculated and what are the units? Materials Top Trumps Materials Top Trumps Skin Nylon Density 1050 kgm-3 Malleability 8 Density 1120 kgm-3 Malleability 9 Hardness 1 Ductility 0 Hardness 1 Ductility 1 Young modulus 7,500 Nm-2 Flexibility 8 Young modulus 2 GNm- Flexibility 8 Strength 20 MPa Toughness 1 Strength 580 x106 Pa

Toughness 9 17. QUESTION: Define shear stress and give an example of it. Materials Top Trumps 2 18. QUESTION: Is a material that is brittle also weak? Materials Top Trumps Polystyrene Sapphire Density 75kgm-3 Malleability 2 Density 3970 kgm-3 Malleability 0 Hardness 0 Ductility 0 Hardness 7 Ductility 0 Young modulus 3.5x109 Nm-2 Flexibility 5 Young modulus 435x109 Nm-2 Flexibility 0 Strength 50 MPa Toughness 1 Strength 1.9 GPa Toughness 9 19. QUESTION: What can be said to be the opposite of brittleness? 20. QUESTION: ________ materials show resistance to plastic deformation Materials Top Trumps Materials Top Trumps Concrete Aluminium Density 2,400 kgm-3 Malleability 0 Density 2,700 kgm-3 Malleability 6 Hardness 5 Ductility

0 Hardness 3 Ductility 3 Young modulus 85 GPa Flexibility 1 Young modulus 69 GNm-2 Flexibility 7 Strength 3 MPa Toughness 7 Strength 50x106 Pa Toughness 7 21. QUESTION: Whats the definition of compressive strength? 22. QUESTION: Whats the definition of compressive strain? Materials Top Trumps Materials Top Trumps Spider silk Human Hair Density 1,300 kgm-3 Malleability 8 Density 0.07 kgm-3 Malleability 7 Hardness 0 Ductility 0 Hardness 0 Ductility 0 Young modulus 300 MPa Flexibility 10 Young modulus Nm-2 Flexibility 9 Strength 1 GPa Toughness 9 Strength 380x106 Pa Toughness

8 23. QUESTION: Are all malleable materials tough? Explain. 24. QUESTION: Give the material properties necessary for a) Aeroplane wings b) Electrical wiring and c) Building construction QUESTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. QUESTION: What is the definition of a brittle material? QUESTION: How is the stiffness of a material calculated? QUESTION: How is stored elastic energy calculated from a graph of Force applied (N) over extension of a material (m)? QUESTION: What is hysteresis? How would this appear in a graph? QUESTION: Explain why the units of the Young Modulus can be either Nm -2 or Pa. QUESTION: Why might a material be described as tough? Task: Draw a stress strain graph for titanium. Question: The compressive strength of marble is 112MPa. If a marble column holding up a roof of a temple is a cylinder supporting 1.43x107N, what is its minimum diameter? QUESTION: How is Youngs Modulus calculated? TASK: Draw a stress-strain graph and plot two lines of different stiffness QUESTION: Why is glass said to be brittle? QUESTION: Name 3 malleable materials and state the definition of malleable. QUESTION: What are the units of tensile strain? Task: Draw a stress-strain graph for glass QUESTION: What is necking and when does it occur in material tests? QUESTION: How is compressive stress calculated and what are the units? QUESTION: Define shear stress and give an example of it. QUESTION: Is a material that is brittle also weak? QUESTION: What can be said to be the opposite of brittleness? QUESTION: ________ materials show resistance to plastic deformation QUESTION: Whats the definition of compressive strength? QUESTION: Whats the definition of compressive strain? QUESTION: Are all malleable materials tough? Explain. QUESTION: Give the material properties necessary for a) Aeroplane wings b) Electrical wiring and c) Building construction ANSWERS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. QUESTION: A lot of stress for little strain. Shatters upon larger applied forces? QUESTION: F = kx, where k is the stiffness QUESTION: Area under graph = Nm = Joules QUESTION: What is hysteresis? How would this appear in a graph? QUESTION: Explain why the units of the Young Modulus can be either Nm -2 or Pa. QUESTION: Why might a material be described as tough? Task: Draw a stress strain graph for titanium. Question: The compressive strength of marble is 112MPa. If a marble column holding up a roof of a temple is a cylinder supporting 1.43x107N, what is its minimum diameter? 0.4m QUESTION: How is Youngs Modulus calculated? TASK: Draw a stress-strain graph and plot two lines of different stiffness QUESTION: Why is glass said to be brittle? QUESTION: Name 3 malleable materials and state the definition of malleable. QUESTION: What are the units of tensile strain? Task: Draw a stress-strain graph for glass QUESTION: What is necking and when does it occur in material tests? QUESTION: How is compressive stress calculated and what are the units? QUESTION: Define shear stress and give an example of it. QUESTION: Is a material that is brittle also weak? QUESTION: What can be said to be the opposite of brittleness? QUESTION: ________ materials show resistance to plastic deformation QUESTION: Whats the definition of compressive strength? QUESTION: Whats the definition of compressive strain? QUESTION: Are all malleable materials tough? Explain. QUESTION: Give the material properties necessary for a) Aeroplane wings b) Electrical wiring and c) Building construction

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