1.         Work is the product of force and ____________.

2.         In MKS system the unit of force is ____________.

3.         If the velocity of a body is doubled, its kinetic energy will become ____________ times.

4.         The Mechanical Advantage of an Inclined Plane is ____________.

5.         Radioactive ____________ is used to treat the cancer of thyroid glands.

6.         If the weight of a body is 49.0 Newtons, its mass is ____________kg.

7.         Displacement is an example of ____________.

8.         One microsecond = ____________ second.

9.         The unit of the power of lens is called ____________.

10.     The image formed in the human eye is real, inverted and ____________.

11.     ____________ takes place when the angle of incidence is greater than the critical angle.

12.     ____________ joules of heat are required to melt one kg of ice at O°C.

13.     The unit of conductance is ____________.

14.     ____________ particles are strong ionizing agents.

15.     The irregular motion of small, suspended particles in air or water is called ____________.

16.     The unit of capacitance is ____________.

17.     The combined resistance of a circuit is more if all the resistance are connected in ____________.

18.     The ____________ of its wave length and frequency.

19.     The process in which a heavy nucleus breaks up into two or more smaller nuclei with the release of tremendous energy is called ____________.

20.     The centripetal force required by artificial satellites to move around the earth is provided by ____________.

21.     The melting point of a substance which contracts of freezing with the increase of pressure.

22.     The ratio of the size of the image to the size of the object is called ____________.

23.     The minimum amount of energy that the electron requires for being emitted from a metal surface is known as the ____________ of the metal.

24.     The unit of the capacity of a capacitor is ____________.

25.     Physics is that branch of science which affords the study of the properties of matter and ____________ and interaction between them.

26.     The Muslims emphasized upon the importance of ____________ in science.

27.     Science is the ____________ heritage of all mankind.

28.     ____________ is the first book written on the subject of algebra by Khawarzmi.

29.     Laser is the field of ____________ physics.

30.     In every day life and physical science ____________ has a fundamental importance.

31.     In international system of units, the unit of length, mass, time, electric current, temperature, intensity of light and quantity of matter are called ____________ units.

32.     The units derived from the fundamental units are called ____________.

33.     Kilogram is the unit of ____________ in ____________ units.

34.     If you wish to measure length with accuracy greater than 0.01 cm you would use a ____________.

35.     The zero error of a measuring instrument can be ____________ or ____________.

36.     If the graph between two quantities is a straight line then these quantities are ____________ proportional to each other.

37.     The slope of a straight line Distance-time graph represents ____________.

38.     If the quantities are directly proportional to each other then while expressing the relation between them by an equation one of the two quantities is multiplied by ____________.

39.     A scalar has only ____________ but no ____________.

40.     A vector has ____________ as well as ____________.

41.     Vectors are added graphically by using ____________ rule.

42.     The angle between rectangular components of a vector is ____________.

43.     The x-component of force F acting at an angle q with the axis is given by the formula ____________.

44.     A body is said to be in motion when it is ____________ it’s position with respect to its surroundings.

45.     The numerical value of g is ____________m/s².

46.     The distance covered by moving object in one second is called ____________.

47.     If a moving body covers equal distance in equal intervals of time however small the internal way be, in a particular direction, then the velocity is called ____________ velocity.

48.     The rate of change of velocity is called ____________.

49.     A ball is thrown vertically upwards with a velocity of 98 m/s and after 10 seconds it reaches the maximum height. The average acceleration of the ball is ____________.

50.     Speed in a given direction is called ____________.

51.     Two bodies of mass 1 kg and 5 kg are dropped from a building 196 m high. The time taken by 1kg mass to reach the ground is ____________ second and that by 5 kg is ____________ second.

52.     Motion cannot be produced in a body without ____________.

53.     No moving object can be stopped without applying ____________.

54.     The property of the matter by virtue of which it resists any attempt to change its state of rest or of uniform motion is called ____________.

55.     When an external force acts upon a body then it produces an ____________ in the body in its own direction.

56.     The acceleration produced in a body under the influence of an external force is ____________ proportional to the magnitude of the force.

57.     The quantity of matter in a body is called its ____________.

58.     The force with which earth attracts a body towards its centre is called ____________ of the body.

59.     Every action has a reaction, these are ____________ in magnitude but ____________ in direction.

60.     The product of mass and velocity is called ____________.

61.     The centripetal force required by the planets to move constantly in their____________ is provided by the force of ____________.

62.     When one body slides over the surface of another body then unevenness of the surfaces result in ____________ that causes the obstruction in the motion of the body.

63.     Rolling friction is much ____________ than sliding friction.

64.     Greater is the ____________ of a force greater will be the torque.

65.     The fist condition of equilibrium is that the resultant of all the forces acting on a body in equilibrium is ____________.

66.     If a body in stable equilibrium is slightly disturbed it comes back to its ____________ position.

67.     If the centre fo gravity of a body lies at the point of suspension or support, the body is said to be in the state of ____________ equilibrium.

68.     The second condition of equilibrium is that the resultant of all the ____________ acting on a body is zero.

69.     If the centre of gravity of a body is at the point of ____________, then it will be in the state of neutral equilibrium.

70.     The attractive force between any two bodies of the universe is called ____________.

71.     The gravitational force between any two bodies depends on their ____________ and ____________ between them.

72.     Acceleration due to gravity does not depend upon ____________ of the body.

73.     The weight of a body becomes ____________ if it is taken at a distance double the radium os the earth from the centre of the earth.

74.     If a force does work on a body the body must ____________.

75.     When the force acting on a body and its displacement are known, the formula used to calculate the work done by the force is ____________.

76.     The unit of power in S.I unit is the ____________ which is the same as ____________ per second.

77.     The force acting on a freely falling body of mass m kg is given by the formula F = ____________ where ____________ equals to 9.8 ____________.

78.     When an amount of work W is done on a body in the gravitational field, the ____________ of the body is increased by an amount ____________.

79.     Energy can be transferred from one form to another but it cannot be ____________ or ____________.

80.     Work done by a body by virtue of its motion is called ____________.

81.     ____________ energy is acquired by the body due to change in its position.

82.     When we assume that there is no loss of ____________ due to friction in a machine then the ____________ is equal to the ____________.

83.     The efficiency of a machine is the ____________ of work done by the machine to the work done ____________.

84.     The see-saw is an example of a order of ____________ kind.

85.     The mechanical advantages of a whell and axle system is given by the ____________ of the ____________ to the ____________.

86.     ____________ is a device which makes the process of doing work easier.

87.     According to the molecular theory of matter, the molecules of the matter always remain in a ____________ motion.

88.     As the molecules of the solids do not move from one place to another, hence solids keep their ____________ intact.

89.     The property of the matter by virtue of which it resists any force that tends to produce deformation in it is called ____________.

90.     The force acting on a unit area of a solid, that tends to produce deformation in the solid is called ____________.

91.     When a force is applied on a metallic wire, a change in length to its length takes place, then the ratio of the change in length to its original length is called ____________.

92.     Within the elastic limit the deformation produced in a solid body is ____________ proportional to the applied force.

93.     The density of the body depends upon the ____________ of the body.

94.     The ____________ of the ornaments can be determined by finding its density.

95.     The instrument used for measuring the unknown pressure with respect to atmospheric pressure is called ____________.

96.     The differences between the three states of matter can be described by referring to the ____________  energy of ____________.

97.     Young’s Modulus or the modulus of ____________ is the ratio of stress to ____________ and its SI unit is ____________.

98.     Hooke’s Law state that within ____________ limits the ____________  exerted is proportional to the ____________ produced.

99.     The pressure at a point in aliquid is determined by the ____________ of the point and the ____________ of the liquid.

100. Archimedes principle states that the apparent loss of ____________ of an object ____________ to the ____________ of the volume of liquid ____________ by object.

101. Atmosphere ____________ can be measured using either an aneroid or a mercury ____________. Two unit for the measurement are mm of ____________ and ____________.

102. Heat is a form of ____________ which flows from a body at higher temperature to a body at lower temperature.

103. Increase in length of a body on being heated is called ____________.

104. Instead of expanding water contracts when heated from 0°C to 4°C, but it expands when heated from 4°C to 100°C. Such an expansion is called ____________ of water.

105. 32°F is the same temperature as ____________°C and ____________°F is the temperature as 100°C.

106. the heat energy involved in a change of state is called ____________ heat.

107. The operation of a liquid in glass thermometer depends on the fact that the volumetric expansion of glass is ____________ than the volumetric expansion of the ____________.

108. Thermostats are devices, which control ____________ in a certain region.

109. If the pressure on the surface of a liquid is increased it will boil at a ____________ temperature.

110. The general gas law states that the relationship between the volume, the pressure and the temperature of a gas is ____________ x ____________ = nR____________.

111. Whenever two bodies at different temperatures are brought in thermal contact with each other the heat lost by hot body is ____________ the heat gained by the cold body.

112. The amount of heat required to change 1kg of a liquid at its boiling pint into vapours at the same temperature is called the ____________ of vaporisation.

113. The boiling point of water ____________ on increasing the pressure on its surface.

114. The change of liquids into vapours without being boiled is called ____________.

115. A motion which repeats it self in equal intervals of time is called ____________.

116. ____________ is also a periodic motion.

117. While executing a simple harmonic motion, the magnitude of the acceleration of the body is ____________ to its distance from the mean position and the direction of the acceleration is always towards the ____________.

118. The vibratory motion of the bob of a simple pendulum is ____________.

119. The waves in which the particles of he medium vibrate in a direction perpendicular to the direction of propagation of waves are called ____________.

120. Transverse waves consist of ____________.

121. Longitudinal waves consist of ____________ and ____________ and as they pass through a medium, the particles of the medium vibrates in the ____________ of the waves.

122. Wave length is the distance between two such ____________ particle which are in the similar ____________ of these periodic motion.

123. Human ear cannot hear sound of frequency greater than ____________ and it is known as ____________.

124. An interesting example of resonance is that of ____________.

125. Sound which is agreeable to human ear is called ____________ sound.

126. The characteristics of musical sound are ____________, ____________ and ____________.

127. The distance between the pole and the principal focus of a spherical mirror is the  ____________ of the mirror.

128. The image formed by a mirror is always virtual, erect and smaller than the object.

129. An object 5cm from a plane mirror forms an image, of the object that is the same size and the object and ____________ cm from the mirror.

130. A ray which passes through the curvature of a mirror is ____________ back along the same path after reaching the mirror.

131. The focal plane of a spherical mirror is ____________ to the ____________ axis and intersects this axis at the ____________ focus.

132. In order to solve problems involving spherical mirrors distances are measured from the ____________ of the mirror, and the distances of real objects and ____________ images are taken as ____________.

133. If the object is placed in front of concave mirror between principal focus F and pole P, the image is formed ____________ the mirror.

134. The ratio of the size of image to the size of the object is called ____________.

135. The focal length of concave mirror is taken as ____________ whereas the focal length of convex mirror is taken as ____________.

136. Light is a form of ____________.

137. When a ray of light enters obliquely from a rarer into a denser, medium then it bends ____________ the normal.

138. The refractive index of a medium does not depend upon the angle of incidence but it does depend upon the nature of the ____________.

139. When a ray of light enters from a denser into a rarer medium then that angle or incidence for which the corresponding angle of refraction is 90° is called ____________.

140. Least distance of distinct vision for a normal human eye is ____________.

141. A transparent medium bounded by three rectangular surface and two triangular surfaces are called a ____________.

142. A transparent medium bounded by one or two spherical surfaces is known as a ____________.

143. A lens through which the rays after refraction converge at a point is called ____________ lens.

144. Any ray of light passing though a particular point inside a lens does not suffer any change in direction. This point is called ____________.

145. That point where all the rays coming parallel to the principal axis, converge after passing through a lens is called ____________.

146. The index of refraction of a substance can be calculated by dividing the speed of light in vacuum by the speed of light in ____________.

147. When the object is at a long way away the image from a convex lens is obtained at ____________.

148. The image formed is always virtual, diminished and erect in a ____________ lens.

149. The reciprocal of the focal length of a lens is called the ____________ of the lens.

150. The unit of power used by opticians is called a ____________.

151. When an eye can see clearly only distant object, it suffers from ____________.

152. Light consists of minute particles called ____________ according to the Corpuscular theory of light.

153. Light is a form of ____________ which propagates as trains of ____________ according to wave theory of light.

154. According to quantum theory light is supposed to be a form of ____________ which is absorbed and emitted in ____________.

155. The speed of light in air is ____________ than the speed of light in water.

156. ____________ light is composed of lights of different ____________.

157. Splitting up of white light into several colours is called ____________.

158. According to ____________ light is propagated in space in the form of waves.

159. Electromagnetic waves differ in frequency and in ____________.

160. Light is emitted by ____________ atoms.

161. An electron may absorb energy and be lifted to a higher ____________.

162. Practically the whole ____________ of the atom is concentrated in its nucleus.

163. The electrons of the outer most orbit in an atom are known as ____________ electrons.

164. The smallest unit of negative charge that can exist in nature is on an ____________.

165. Coulomb is defined as the amount of charge carried by a current of ____________ in ____________ second.

166. Like charges ____________ each other and unlike charge ____________ each other.

167. The number of ____________ electrons are very ____________ in a insulator.

168. One milliampere is equal to ____________.

169. The graph between current passing through a conductor and the potential difference across its end is always a ____________.

170. If resistance R1 and R2 are connected in such a way that potential difference across them always remains the same, this will be possible only when they are connected in ____________.

171. The rate of flow of electric charge in a conductor is called ____________.

172. In the S.I system of units electric field intensity is measured in ____________ per ____________.

173. According to Ohm’s law the ____________ flowing in a conductor is ____________ proportional to the potential difference between its ends.

174. In a parallel combination of resistors the total resistance is always ____________ than the resistance of any individual resistor.

175. The potential difference between two points is 1 ____________ if 1 joule of electrical energy is changed into another form of energy when ____________ passes from one point to the other.

176. A freely suspended magnet always points in the ____________ direction.

177. The region around a magnet where its magnetic effect is felt is called its ____________.

178. The magnetic lines of force ____________ longitudinally.

179. The magnetic lines of force never ____________ one another.

180. If an electric current is passing through a wire then a ____________ is produced around it.

181. If the electric current is flowing from top to bottom in a wire, then the direction of the lines of force will be ____________.

182. If the flow of current at any end of a coil is anti clockwise then this end will be a ____________ pole.

183. ____________ is a sensitive electrical instrument that detects the presence of current in a circuit.

184. Ammeter is an electrical instrument used for measuring ____________.

185. The instrument used to measure the potential difference is called ____________.

186. The semiconductors doped with pentavalent elements are called ____________ substances.

187. A semic conductor diode has a very ____________ electric resistance when it is forward biased.

188. When a semi conductor diode is reverse biased, electrons and holes will move ____________ the p-n junctions.

189. The sound is carried through space by fluctuating radio waves, also known as ____________ carrier waves.

190. The satellites launched into an orbit around the earth must keep their position static relative to the earth.

191. Group ____________ impurities are called acceptor impurities.

192. Group V impurities are called ____________ impurities.

193. Holes are the charge carrier in ____________ type material.

194. ____________ are the charge carrier in N-type material.

195. PN junction behaves as a ____________.

196. The size of the atom is ____________m, whereas the size of its ____________ is ____________ 10^-14m.

197. Ever a-particle carries ____________ charge which is double the charge of ____________.

198. The velocity of b-rays vary from ____________ to ____________.

199. ____________ is also called electron.

200. ____________ rays are not deflected by an electric or magnetic field.

201. In ____________ reaction two lighter nuclei are combined to form a heavy nucleus.

202. A reaction in which ____________ nucleus splits into fragments is called ____________.

203. An atom of radon ₈₆R_n²²² which contains X protons and Y neutrons, where X = ____________ and Y = ____________.

204. Nucleus of ____________ is called alpha particle.

205. The time in which half of the atoms of an element decay is called ____________