Skip to content
Philoid
Browse Saved
Back to chapter
Physics
12. Friction
Home · Class 8 · Physics · Ref. Book · 12. Friction
Prev
Next
Q59 of 100 Page 231

What is meant by lubrication ? Why is it important?

Lubrication means applying some additive to the parts of a machine to reduce the friction. Its important because it reduces the friction between the parts of the machine. But excess lubrication can generate more heat. Example- Castor Oil, Grease.


More from this chapter

All 100 →
57

Explain why, sportsmen use shoes with spikes.

58

How will you reduce friction between those machine parts which rub against each other? Give the simplest method.

60

Explain why, wheels are so useful.

61

Why are lubricants (oil or grease) applied to rubbing surfaces of machines?

Questions · 100
12. Friction
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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 66 67 67 68 68 69 69 70 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved