Multiple choice

When a nail is pushed in a wall or wood, it is pushed from pointed side. Which of the following is the correct reason behind this?

  1. Pointed end cuts the wall or wood as it is sharp.

  2. Because of pointed shape, nail exerts more pressure over the wall or wood and is easily pushed by hammering.

  3. Because we cannot hold it from the pointed end, therefore keep it towards the wall or wood.

  4. Pointed end has concentrated metal, hence is stronger.

  5. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, because of pointed shape, nail exerts more pressure over the wall or wood and is easily pushed by hammering. Pressure increases with decrease in surface area and decreases with increase in surface area.

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