NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1110 - 1114 of 1128

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Question 1110

Question

MCQ▾

A coolie is carrying a suitcase of mass on his back and moves on a levelled road. If the value of g is , the work done by the coolie against the gravitational force will be

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1111

Question

MCQ▾

Which of the following would be the unit of work?

Choices

Choice (4)Response

a.

b.

c.

Joule

d.

All a., b. and c. are correct

Question 1112

Question

MCQ▾

A ball thrown vertically upwards, its

Choices

Choice (4)Response

a.

Velocity decreases and it would attain maximum potential energy

b.

Velocity increases and it would attain minimum potential energy

c.

Velocity increases and it would attain maximum potential energy

d.

Velocity decreases and it would attain minimum potential energy

Question 1113

Question

MCQ▾

Name the physical quantity, which is equal to the product of force and velocity.

Choices

Choice (4)Response

a.

Energy

b.

Acceleration

c.

Power

d.

Work

Question 1114

Question

MCQ▾

A car is accelerating on a levelled plane and acquires a velocity times of its initial velocity. During this process, the potential energy of the car

Choices

Choice (4)Response

a.

Does not change

b.

Becomes times that of the initial potential energy

c.

Becomes times that of the initial potential energy

d.

Becomes times that of the initial potential energy

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