NCERT Class 8 Science-Friction[Friction- A Necessary Evil] [NCERT Based General Studies (GS)]: Questions 1 - 5 of 5
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Question 1
Question MCQ▾
Friction is a:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Conservative force | |
b. | Force | |
c. | Non-conservative force | |
d. | None of the above | |
Question 2
Question MCQ▾
Force responsible for wear and tear of machine of various parts is:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Gravity of earth | |
b. | Friction | |
c. | Relative motion | |
d. | Drag | |
Question 3
Question MCQ▾
Friction helps to:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Write on paper | |
b. | Walk or run | |
c. | Holding objects | |
d. | All a., b. and c. are correct | |
Question 4
Question MCQ▾
Due to fiction:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Nails remain fixed | |
b. | Matchsticks and strings can be tied | |
c. | Ropes and strings can be tied | |
d. | All a., b. and c. are correct | |
Question 5
Question MCQ▾
Friction:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Has no effect on the efficiency of machine | |
b. | Friction is an evil | |
c. | Decreases the efficiency of machine | |
d. | Increases the efficiency of machine | |