NSO Level 1- Science Olympiad (SOF) Class 8: Questions 762 - 768 of 1076
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Question number: 762
» Friction
Question
The weighing device used for measuring the force acting on an object is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Vector quantity |
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| b. | Scalar quantity |
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| c. | All of the above |
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| d. | None of the above |
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Question number: 763
Question
One Pascal is equal to
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 kg/m² |
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| b. | 1 kgm² |
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| c. | 1 Nm² |
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| d. | 1 N/m² |
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Question number: 764
Question
The force with which earth attracts all the objects towards its centre. This force is called
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Electrostatic force |
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| b. | Friction |
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| c. | Magnetic force |
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| d. | Gravity |
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Question number: 765
» Friction
Question
Friction always acts as________the direction of motion of an object.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Perpendicular to |
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| b. | In the same direction as |
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| c. | At 45 degrees angle to |
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| d. | Opposite to |
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Question number: 766
» Friction
Question
The force opposing movement of the swimmer in the figure is called
Image Shown Fluid Friction
Image shown Fluid friction
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Solid friction |
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| b. | Liquid friction |
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| c. | Fluid friction |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 767
Question
Identify the type of force applied in these case:
A boy squeezes a plastic bottle with his hands.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Gravity |
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| b. | Mechanical force |
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| c. | Contact force |
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| d. | Muscular force |
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Question number: 768
» Friction
Question
Sand paper is used to increase friction. The reason is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Sand paper increases the roughness of the surface |
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| b. | Roughness increases friction |
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| c. | Both a. and b. are correct |
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| d. | Question does not provide sufficient data or is vague |
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