NSO Level 1- Science Olympiad (SOF) Class 8: Questions 762 - 768 of 1076
Access detailed explanations (illustrated with images and videos) to 1076 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 450.00 or
How to register?
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 |
|
b. | Scalar quantity |
|
c. | All of the above |
|
d. | None of the above |
|
Question number: 763
Question
One Pascal is equal to
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 kg/m² |
|
b. | 1 kgm² |
|
c. | 1 Nm² |
|
d. | 1 N/m² |
|
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 |
|
b. | Friction |
|
c. | Magnetic force |
|
d. | Gravity |
|
Question number: 765
» Friction
Question
Friction always acts as________the direction of motion of an object.
Choices
Choice (4) | Response | |
---|---|---|
a. | Perpendicular to |
|
b. | In the same direction as |
|
c. | At 45 degrees angle to |
|
d. | Opposite to |
|
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 |
|
b. | Liquid friction |
|
c. | Fluid friction |
|
d. | Question does not provide sufficient data or is vague |
|
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 |
|
b. | Mechanical force |
|
c. | Contact force |
|
d. | Muscular force |
|
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 |
|
b. | Roughness increases friction |
|
c. | Both a. and b. are correct |
|
d. | Question does not provide sufficient data or is vague |
|