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KCET SERIES
Physics

Work Energy And Power

15 previous year questions.

Volume: 15 Ques
Yield: Medium

High-Yield Trend

1
2023
1
2022
1
2019
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2017
1
2015
2
2013
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2009
1
2007
1
2005
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2002
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2000
1
1995
1
1994

Chapter Questions
15 MCQs

01
PYQ 1994
medium
physics ID: kcet-199
A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of two spheres is
1
45
2
different from 90
3
90
4
0
02
PYQ 1995
medium
physics ID: kcet-199
Water is falling on the blades of a turbine at a rate of . The height of fall is . The power given to the turbine is
1
10 kW
2
6 MW
3
100 kW
4
150 m
03
PYQ 2000
medium
physics ID: kcet-200
The kinetic energy of a body becomes four times its initial value. The new linear momentum will be
1
twice the initial value
2
same as the initial value
3
four times the initial value
4
thrice the initial vlaue
04
PYQ 2002
medium
physics ID: kcet-200
The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is
1
60
2
120
3
150
4
90
05
PYQ 2005
medium
physics ID: kcet-200
The relationship between the force and position of a body is as shown in the figure. The work done in displacing the body from to will be
1
30 J
2
15 J
3
25 J
4
20 J
06
PYQ 2007
medium
physics ID: kcet-200
A shell of mass at rest explodes into two fragments whose masses are in the ratio . The smaller fragment moves with a velocity of . The kinetic energy of the larger fragment is
1
360 J
2
144 J
3
216 J
4
96 J
07
PYQ 2009
easy
physics ID: kcet-200
The work done by a force acting on a body is as shown in the graph. The total work done in covering an initial distance of is
1
212.5 J
2
400 J
3
175 J
4
225 J
08
PYQ 2013
medium
physics ID: kcet-201
A truck accelerates from speed . Work done in during this is
1
three times as the work done in accelerating it from rest to
2
same as the work done in accelerating it from rest to
3
four times as the work done in accelerating it from rest to
4
less than the work done in accelerating it from rest to
09
PYQ 2013
medium
physics ID: kcet-201
A gun fires a small bullet with kinetic energy .Then kinetic energy of the gun while recoiling is
1
2
more than
3
less than
4
10
PYQ 2015
medium
physics ID: kcet-201
The kinetic energy of a body of mass and momentum will be
1
2.5 J
2
3.5 J
3
4.5 J
4
5.5 J
11
PYQ 2017
medium
physics ID: kcet-201
A motor pump lifts tonnes of water from a well of depth to the first floor of height from the ground floor in minutes. The power of the pump (in kW) is
1
3
2
6
3
1.5
4
12
12
PYQ 2017
medium
physics ID: kcet-201
If is perpendicular to , then the value of is
1
2
3
1
4
-1
13
PYQ 2019
medium
physics ID: kcet-201
During inelastic collision between two bodies, which of the following quantities always remain conserved?
1
Total kinetic energy
2
Total mechanical energy
3
Total linear momentum
4
Speed of each body
14
PYQ 2022
easy
physics ID: kcet-202

A smooth chain of length 2 m is kept on the table such that its length of 60 cm hangs freely from the edge of the table . The total mass of the chain is 4 kg. The work done in pulling the entire chain on the table is. ( Take g = 10 m/s2)

1
3.6 J
2
12.9 J
3
2.0 J
4
6.3 J
15
PYQ 2023
hard
physics ID: kcet-202
A wire of resistance R is connected across a cell of emf Ξ΅ and internal resistance r. The current through the circuit is I. In time t, the work done by the battery to establish the current I is
1
2
IRt
3
I2Rt
4
Ξ΅It

About Work Energy And Power - KCET

Work Energy And Power is a vital chapter for KCET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

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