Question

Use what you know about the properties of metal to explain why you think it is incredibly dangerous and potentially deadly to stick something metal in an electrical outlet.

Answer 1

Answer:

It depends somewhat on the metal. For most of the inappropriate things that are likely to be stuck in to an outlet (small steel objects like forks, say), there will be a pop or bang and a small flash, as a large amount of current flows through a very small area of steel and vaporizes it, just before the circuit breaker trips.

Explanation:

• If the metal object is made of copper, the result might be less dramatic - a spark and then the breaker trips. Most commonly, of course, the ‘metal object’ is the prongs of an actual plug, connected to some device with a resistance suited to the voltage.
• Metals are generally solids at room temperature. Mercury and gallium are the only metals that exist in the liquid state at this temperature.
• Metals have a shiny appearance. The characteristic shine of metals is called metallic luster. Gold, silver, platinum, aluminium, iron, zinc, and tin are lustrous metals.
• Electrical conductivity: Metals are good conductors of electricity. Silver is the best conductor of electricity followed by copper and aluminium. Therefore, wires used to transmit electricity are made of copper and aluminum.

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