Skip to content
Philoid
Browse Saved
Back to chapter
Physics
3. Gravitation
Home · Class 9 · Physics · Ref. Book · 3. Gravitation
Prev
Next
Q45 of 176 Page 124

Explain why, a nail has a pointed tip.

A nail has a pointed tip, so that when it is hammered, the force of hammer is transferred to a very small area of wood creating a large pressure which pushes the nail into the wood.


More from this chapter

All 176 →
43

Explain why, when a person stands on a cushion, the depression is much more than when he lies down on it.

44

Use your ideas about pressure to explain why it is easier to walk on soft sand if you have flat shoes rather than shoes with sharp heels.

46

Explain why, buildings and dams have wide foundations.

47

Why does a ship made of iron and steel float in water whereas a small piece of iron sinks in it.

Questions · 176
3. Gravitation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 50 50 51 51 52 52 52 53 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 27 28 29 30 3 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 54 54 54 55 56 56 57 57 57 58 58 58 59 59 59 60 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved