NSO Level 1- Science Olympiad (SOF) Class 8: Questions 751 - 755 of 1076
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Question number: 751
Question
Pick out the examples where force is used to push the object.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Kicking a football |
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| b. | Moving a cart |
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| c. | Opening a door from inside the room |
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| d. | Drawing water from a well |
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Question number: 752
Question
It is easy to cut vegetables using a sharp knife than a blunt one. The reason behind this statement is
1) The cutting edge of a sharp knife has less area than the blunt knife
2) The cutting edge of a blunt knife has less area than the sharp knife
3) A sharp knife applies more pressure on the vegetables than the blunt one
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 and 3 |
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| b. | 2 and 3 |
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| c. | None of the above |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 753
Question
When a ball is thrown upwards, it hits the roof and bounces back. Here the force required to change the direction is exerted by
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Muscular force |
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| b. | Frictional force |
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| c. | Gravitational force |
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| d. | Contact force |
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Question number: 754
Question
A boy is crushing a disposable bottle. Here the effect of the force is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Change in shape |
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| b. | Change in state |
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| c. | Change in position |
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| d. | All of the above |
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Question number: 755
Question
Force may start motion in objects. Which of the following is an example of this statement?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Kicking a moving ball |
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| b. | Kicking a football |
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| c. | Catching a cricket ball |
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| d. | Hitting with hammer on an aluminium vessel |
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