Question
| 1. Solid to liquid | a. vaporization |
| 2. Liquid to vapour | b. condensation |
| 3. Solid to vapour | c. fusion |
| 4. Vapour to liquid | d. solidification |
| 5. Liquid to solid | e. sublimation |
| 1. Solid to liquid | a. vaporization |
| 2. Liquid to vapour | b. condensation |
| 3. Solid to vapour | c. fusion |
| 4. Vapour to liquid | d. solidification |
| 5. Liquid to solid | e. sublimation |
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| Column A | Column B | ||
| 1. | The amount of surface occupied by an object or place. | 1. | m2 |
| 2. | Sl unit of area. | 2. | area |
| 3. | A multiple of Sl unit of area used for measuring the area of a state. | 3. | centimetre |
| 4. | A sub-multiple unit of area used for measuring the area of a postal stamp. | 4. | km2 |
| 5. | A graph paper used for measuring the area of banyan leaf. | 5. | mm2 |
| Column A | Column B |
| (a) Circular motion | (1) a running fan |
| (b) periodic motion | (2) a car moving in a market |
| (c) Vibratory motion | (3) revolution of earth around the sun |
| (d) Rotatory motion | (4) motion of wire of a guitar |
| (e) Non uniform motion | (5) motion of pendulum of a clock |
| Column A | Column B | ||
| 1. | A small glass bottle used for finding the density of a liquid. | 1. | ms-1 |
| 2. | Mass per unit volume. | 2. | 1000 kgm-3 |
| 3. | Distance per unit time. | 3. | Density |
| 4. | The unit of speed in Sl system. | 4. | Density bottle |
| 5. | The density of fresh water in Sl system. | 5. | Speed |
| Column A | Column B | ||
| 1. | Expansion produced in matter due to the absorption of heat energy. | (a) | Linear expansion |
| 2. | Increase in the area of a solid only on the absorption of heat energy. | (b) | Gas |
| 3. | The kind of matter which expands most on heating. | (c) | Superficial expansion |
| 4. | Increase in the volume of a solid on the absorption of heat energy. | (d) | Thermal expansion |
| 5. | Increase in the length of a substance on the absorption of heat energy. | (e) | Cubical expansion |
| Column A | Column B | ||
| 1. | A perpendicular drawn on the mirror surface at the point of incidence. | (a) | Virtual image |
| 2. | A ray of light on striking a plane mirror retraces back its path. | (b) | Reflecting periscope |
| 3. | The kind of image formed in a plane mirror. | (c) | Zero degree |
| 4. | A device using two plane mirror inclined at $45^{\circ}$ to a vertical tube. | (d) | Normal incidence |
| 5. | The magnitude of angle of incidence, when a ray strikes normally on a plane mirror. | (e) | Normal |
| Column A | Column B | ||
| 1. | A device which converts electric energy into heat and light energy. | 1. | Electromagnet |
| 2. | A device which converts electric energy into sound energy. | 2. | Electric motor |
| 3. | A device which converts electric energy into magnetic energy | 3. | loud speaker |
| 4. | A device which converts light energy into electric energy. | 4. | electric bulb |
| 5. | A device which converts electric energy into mechanical energy. | 5. | photo-voltaic cell |
| A | B |
| 1.Area of a rectangle | A.m/s |
| 2.Volume of a cuboid | B.$\frac{distance}{time}$ |
| 3.Density | C.length $\times$ breadth |
| 4.Speed of an object | D.$\frac{mass}{volume}$ |
| 5.SI unit of speed | E.length $\times$ breadth $\times$ height |
| Column A | Column B | ||
| 1. | A body having light energy of its own. | (a) | Beam of light |
| 2. | A straight line path along which light energy travels. | (b) | Glowworm |
| 3. | A collection of large number of rays of light. | (c) | Opaque |
| 4. | Anything through which light cannot pass. | (d) | Ray of light |
| 5. | An insect which emits light in the dark | (e) | Luminous body |
| Column A | Column B | ||
| 1. | When the position of a body does not change with respect to surroundings or time | 1. | Circulatory motion |
| 2. | A motion which repeats itself after a fixed interval of time. | 2. | Vibratory motion |
| 3. | A kind of motion in which the moving object undergoes a change in size or shape. | 3. | Rotatory motion |
| 4. | A motion describes by a car on a circular road | 4. | Rest |
| 5. | A motion describes by a table fan. | 5. | Periodic motion |
| 1. 1 Calorie | a. sound energy |
| 2. Burning | b. magnetic energy |
| 3. Coiled spring in a watch | c. heat energy |
| 4. Vibrating bodies | d. 4.186 joules |
| 5. Magnets | e. elastic potential energy |