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Physics ICS Part 1 Chapter 4 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which one of the folloiwng is/are correct. |
<p>Work is positive if 0< 90<sup>o</sup></p> <p>Work is 0 if <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ 90<sup>o</sup></m:r></span></i></m:omath></m:omathpara></span></span></span></p> <p>Work is negative if <span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><i><span style="font-family:"Cambria Math",serif"><m:r>θ 90<sup>o</sup></m:r></span></i></m:omath></m:omathpara></span></span></span></p> <p>All of these</p> |
| 2 | The dimension of power |
<p>[ML2 T-3]</p> <p>[ML-1T-1]</p> <p>[ML2T2]</p> <p>[ML-2T-4]</p> |
| 3 | Absolute P.E. of a body of mass"m" at a distance"r" from earth centre is. |
<p>[-GM/r]</p> <p>- Gr/ M</p> <p>-Gmr</p> <p>GmM /r</p> |
| 4 | 1 kilowatt is equal = |
<p>1000 J /s</p> <p>106 watt</p> <p>0.1 x 10<sup>3</sup> Watt</p> <p>6.25 x 10 <sup>25 Watt</sup></p> |
| 5 | If P = pressure, Deltat V = change in volume, P Delta V represents |
<p>Work</p> <p>Density</p> <p>Power</p> <p>Temperature</p> |
| 6 | The kinetic energy acquired by a distance from rest under eh action of a constant fore is directly proportinal to. |
<p style="margin-bottom:11px"><span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><m:rad><m:radpr><m:deghide m:val="on"><span style="font-family:"Cambria Math",serif"><span style="font-style:italic"><m:ctrlpr></m:ctrlpr></span></span></m:deghide></m:radpr><m:deg></m:deg><m:e><i><span style="font-family:"Cambria Math",serif"><m:r>m1</m:r></span></i></m:e></m:rad></m:omath></m:omathpara></span></span></span></p> <p style="margin-bottom:11px"><span style="font-size:11pt"><span style="line-height:107%"><span style="font-family:Calibri,sans-serif"><m:omathpara><m:omath><m:rad><m:radpr><span style="font-family:"Cambria Math",serif"><span style="font-style:italic"><m:ctrlpr></m:ctrlpr></span></span></m:radpr><m:deg><i><span style="font-family:"Cambria Math",serif"><m:r>1</m:r></span></i></m:deg><m:e><m:rad><m:radpr><m:deghide m:val="on"><span style="font-family:"Cambria Math",serif"><span style="font-style:italic"><m:ctrlpr></m:ctrlpr></span></span></m:deghide></m:radpr><m:deg></m:deg><m:e><i><span style="font-family:"Cambria Math",serif"><m:r>m</m:r></span></i></m:e></m:rad></m:e></m:rad></m:omath></m:omathpara></span></span></span></p> <p>m</p> <p>Independent of m</p> |
| 7 | Kilowatt hour is unit is. |
<p>Power</p> <p>Work</p> <p>Force</p> <p>Momentum</p> |
| 8 | Ratio of dimension of power and K.E. is. |
<p>1 : 1</p> <p>T : 1</p> <p>1 : T</p> <p>M : T</p> |
| 9 | If the velocity of the body becomes double and mass become half thenints K.E. |
<p>Becomes double</p> <p>Beocmes for time</p> <p>In halved</p> <p>Becomes eight time</p> |
| 10 | Two bodies A and B of mass 1 kg and 2 kg respectively have same momentum. Which one has greater KE. |
<p>Cannot be determined</p> <p>A</p> <p>B</p> <p>Both hae the same K.E.</p> |
| 11 | A man carries a bucket of water of 1 kg for 10m height then work done is. |
<p>15 J</p> <p>10 j</p> <p>98 J</p> <p>2.5 J</p> |
| 12 | A body of mass 0.2 kg initially moving with velocity 10 m/s comes to rest in 1 m. how much retarding force acts on it. |
<p>10 N</p> <p>20 N</p> <p>40 N</p> <p>200 N</p> |
| 13 | Work done on a body for increasing velocity results in. |
<p>Change in K.E.</p> <p>Change in gravitational P.E.</p> <p>Change in electric P.E.</p> <p>All</p> |
| 14 | Which of the following is non conservative force. |
<p>Elastic spring force</p> <p>Electric force</p> <p>Gravitational force</p> <p>Tension in string</p> |
| 15 | Escape velocity depends upon. |
<p>Mass of the body</p> <p>Radius of the body</p> <p>Radius of the planet</p> <p>Radius of the Earth</p> |
| 16 | Th dimension of powr is. |
<p>[ML2 T-3]</p> <p>[ML-1T-1]</p> <p>[ML2T2]</p> <p>[ML-2T-4]</p> |
| 17 | Power can be defined as the scalar product of. |
<p>force and displacemnt</p> <p>Force and velocity</p> <p>Force and time</p> <p>Force and mass</p> |
