NSO Level 1- Science Olympiad (SOF) Class 8: Questions 730 - 733 of 1076
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Question number: 730
Question
Select the situations where we push things to change the state.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Moving a heavy log by an elephant | |
b. | Moving a table from one room to another | |
c. | Moving a motorcycle with empty petrol tank | |
d. | Both b. and c. are correct | |
Question number: 731
Question
The pressure exerted by water in a reservoir with height at its bottom would be
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 1500 Pascal | |
b. | 147 Pascal | |
c. | 1470 Pascal | |
d. | 150 Pascal | |
Question number: 732
Question
A porter ties a cloth around his head while carrying the load. The intention of this action would be
Choices
| Choice (4) | Response | |
|---|---|---|
a. | To increase the supporting area | |
b. | To decrease the supporting area | |
c. | To reduce the pressure | |
d. | Both b. and c. are correct | |
Question number: 733
» Friction
Question
In the first figure a boy is trying to move a cupboard and in the second he is moving it ahead. He had to push harder in the first case than the second. The reason is
Image of Static and Sliding Friction
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Static friction and sliding friction are equal in measure | |
b. | Static friction is greater than sliding friction | |
c. | Sliding friction is greater than static friction | |
d. | Question does not provide sufficient data or is vague | |