Work, Energy and Power-Work-Energy Theorem (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 1 - 3 of 3

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Question number: 1

» Work, Energy and Power » Work-Energy Theorem

Appeared in Year: 2011

MCQ▾

Question

A body of 0.5 kg moves along the positive x-axis under the influence of a varying force F (in Newton) as shown below.

Graph of force F (in N) ⟶ distance x (in cm)

Graph of Force F (In N) ⟶ Distance X (In Cm)

In figure a graph of a moving body along x-axis under the influence of a varying force F (in N) is shown.

If the speed of the object at x = 4 m in 3.16 ms –1 then its speed at x = 8m is,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

The displacement x of a particle moving in one dimension, under the action of a constant force is related to time t by the equation: Equation

Where, x is in meter and t is sec. The work done by the force in first 4 sec is –

Choices

Choice (4) Response

a.

6 J

b.

4 J

c.

8 J

d.

0

Question number: 3

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

The displacement x of a particle moving in one dimension, under the action of a constant force is related to time t by the equation: Equation

Where, x is in meter and t is sec. The work done by the force in first 7 sec is –

Choices

Choice (4) Response

a.

4 J

b.

2 J

c.

6 J

d.

0 J

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