Question 1 :
Click and choose the correct answer.<br>In which of the following situations, no work is said to be done?
Question 2 :
Click and choose the correct answer.<br>Which of the following have no definite volume?
Question 3 :
Click and choose the correct answer.<br>The shortest distance travelled between two points is called
Question 4 :
Click and choose the correct answer.<br>In solids, the intermolecular force of attraction is
Question 5 :
Click and choose the correct answer.<br>The moment of force depends upon
Question 6 :
Click and choose the correct answer.<br>Which of the following cannot be compressed?
Question 7 :
Click and choose the correct answer.<br>Which of the following relations is true for spherical mirrors?
Question 8 :
Click and choose the correct answer.<br>A hydrometer is usually made of metal.
Question 9 :
Click and choose the correct option.<br>The change of a substance from its liquid state to its gaseous state at any temperature below its boiling point is called
Question 10 :
Click and choose the correct answer.<br>The relative density of a liquid can be determined by using a special bottle called the relative density bottle.
Question 11 :
Click and choose the correct answer.<br>The intermolecular force is inversely proportional to the _________.
Question 12 :
Click and choose the correct answer.<br>Concave mirrors are used in solar heaters.
Question 13 :
Click and choose the correct answer.<br>When a ball is thrown vertically upwards, the gravitaional potential energy of the ball
Question 14 :
Click and choose the correct option.<br>A ____________ is an instrument used to measure the relative density of liquids.
Question 15 :
Click and choose the correct answer.<br>The geometrical centre of a spherical mirror is called the
Question 16 :
Click and choose the correct option.<br>The process of conversion of a solid into its liquid state, at a particular temperature, on heating is called _________ or fusion.
Question 17 :
Click and choose the correct answer.<br>To measure the density of a solid, only its mass has to be measured.
Question 18 :
Click and choose the correct option.<br>Which of the following is the best conductor of electricity?
Question 19 :
Click and choose the correct option.<br>The kinetic energy of a moving body depends on its mass and
Question 21 :
Click and choose the correct option.<br>A child riding a bicycle is said to possess
Question 22 :
Click and choose the correct option.<br>_________ expand the most on heating.
Question 23 :
Click and choose the correct answer.<br>_____________ has maximum value at the sea level and decreases with increase in altitude.
Question 24 :
Click and choose the correct option.<br>Which of the following natural phenomena takes place due to convection currents?
Question 25 :
Click and choose the correct option.<br>The ray of light emerging out of a parallel sided glass slab is always parallel to the incident ray.
Question 26 :
Click and choose the correct answer.<br>The constant upward and downward circulation of fluid forms currents in the medium called convection currents.
Question 27 :
Click and choose the correct option.<br>The straight line passing through the pole and the centre of curvature of the spherical mirror is called the
Question 28 :
Click and choose the correct answer.<br>The law governing the transmission of pressure through liquids was stated by the French physicist, ____________.
Question 29 :
Click and choose the correct option.<br>Which of the following is a safety wire that connects the metal case of the appliances to the earth?
Question 30 :
Click and choose the correct option.<br>The __________ of a substance is defined as the ratio of the density of the substance to the density of water at 4 °C.
Question 31 :
Click and choose the correct option.<br>A sharp edge has a larger surface area.
Question 32 :
Click and choose the correct answer.<br>Pressure increases if the area of contact
Question 33 :
Click and choose the correct option.<br>The process by which a liquid change into its gaseous state at some fixed temperature by absorption of heat energy is called
Question 34 :
Click and choose the correct answer.<br>The image formed when reflected rays only appear to meet but do not actually meet is
Question 35 :
Click and choose the correct answer.<br>A process by which a substance directly changes from the solid state to its vapour (gaseous) state is called
Question 36 :
Click and choose the correct answer.<br>The liquid that expands the minimum on heating is
Question 37 :
Click and choose the correct answer.<br>The sound that never changes in pitch, volume, speed or timbre is known as ____________.
Question 38 :
Click and choose the correct option.<br>If a force has a tendency to turn or rotate a body in clockwise direction, the moment of force is called anticlockwise moment.
Question 39 :
Click and choose the correct answer.<br>There are four iron rods R1, R2, R3 and R4 of the same dimensions. The temperature of R1 is raised to 500°C, that of R2 to 250°C, that of R3 to 1000°C and that of R4 to 800°C. Which rod will have the maximum linear expansion?
Question 40 :
Click and choose the correct option.<br>The force of attraction between molecules is known as ___________.
Question 41 :
Two rods A and B of the same metal, but of length 1m and 2m respectively are heated from 0 degree celsius to 100 degree celsius. Then
Question 42 :
Solids expand the least and gasses expand the most on being heated.
Question 46 :
All molecules of a liquid take part in the process of evaporation.
Question 52 :
A mercury thermometer makes use of the property of expansion of liquids on heating.
Question 53 :
A body weighing 5 kgf, placed on a surface of area 0.1 m{tex}^2{/tex}, exerts a thrust on the surface equal to
Question 54 : <table> <tr><th>Column I </th> <th>Column II </th> </tr> <tr><td>(a) Camel</td> <td>(i) broad and deep foundation</td> </tr> <tr><td>(b) Truck</td> <td>(ii) broad feet</td> </tr> <tr><td>(c) Knife</td> <td>(iii) six or eight tyres</td> </tr> <tr><td>(d) High building</td> <td>(iv) sharp cutting edge</td> </tr> <tr><td>(e) Thrust</td> <td>(v) atm</td> </tr> <tr><td>(f) Moment of force</td> <td>(vi) N</td> </tr> <tr><td>(g) Atmospheric pressure</td> <td>(vii) N m</td> </tr> </table>
Question 55 :
A given volume of alcohol and the same volume of water are heated from the room temperature to the same temperature then
Question 59 :
All solids expand by the same amount when heated to the same rise in temperature.
