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Questions and Answers
What is meant by conductivity in materials?
What is meant by conductivity in materials?
- The ability to resist chemical changes.
- The ability to change shape without breaking.
- The ability to conduct heat or electricity. (correct)
- The ability to float in water.
Which property describes the attraction to a magnetic field?
Which property describes the attraction to a magnetic field?
- Malleability
- Conductivity
- Magnetism (correct)
- Density
What does ductility refer to in materials?
What does ductility refer to in materials?
- The ability to conduct electricity.
- The ability to dissolve in water.
- The ability to be drawn out into a thin wire. (correct)
- The ability to conduct heat
Which of the following is NOT a physical property?
Which of the following is NOT a physical property?
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Which material property would allow a metal to be stretched into wires without breaking?
Which material property would allow a metal to be stretched into wires without breaking?
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Study Notes
Conductivity
- The ability of a substance to allow heat or electricity to flow through it.
- Examples of good conductors include metals like copper and aluminum.
- Examples of poor conductors include wood, plastic, and rubber.
Magnetism
- Attraction or repulsion between magnetic objects.
- Magnets have two poles - north and south.
- Like poles repel each other, while opposite poles attract.
Ductile
- The ability of a material to be stretched into a wire.
- This property is essential for creating wires for electrical circuits.
- Examples of ductile materials include copper, silver, and gold.
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