Question

A student collected spoons made of plastic, metal, ceramic and wood. She then noted down

conditions under which each of these would be ineffective. Which of the following observations

should be in her notes?

(a) Wooden spoon will let liquids pass through it

(b)Metallic spoon can easily bend on applying pressure

(c)Plastic spoon could deform in high temperature liquids

(d) Ceramic spoon can withstand breaking if dropped on the floor​

Answer 1

Answer:

The student should accurately note the following in her notes:

(c) Plastic spoon could deform in high temperature liquids

Justification:

• Because wooden spoons are not porous, liquids usually cannot travel through them. It would be inaccurate to include this observation in her notes because it deviates from the usual behavior of wooden spoons.
• In general, metallic spoons are stiff and difficult to bend, particularly when using regular pressure as they would be used. Consequently, it is untrue to say that a metallic spoon will bend easily when pressure is applied, and her notes would not benefit from this discovery.
• Although ceramic is brittle, it is not totally true to say that a ceramic spoon will not shatter if it falls to the ground. This would not be a good addition to her notes because ceramic is easily broken when dropped.
• The option (c) regarding the plastic spoon distorting in hot liquids is the best one because plastic is known to melt or deform in high temperatures, rendering it useless under those circumstances.

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