| Column A | Column B |
| 1. A machine whose parts are frictionless as well as weightless. | (a) Simple machine |
| 2. In an device, output energy is less than input energy. | (b) Ideal machine |
| 3. The ratio between the output energy and the input energy. | (c) Machine |
| 4. The machine such as handle of water pump or a ramp. | (d) Principle of machine |
| (e) Efficiency of machine |
| Column A | Column B |
| 1. A machine whose parts are frictionless as well as weightless. | (a) Ideal machine |
| 2. In an device, output energy is less than input energy. | (b) Principle of machine |
| 3. The ratio between the output energy and the input energy. | (c) Efficiency of machine |
| 4. The machine such as handle of water pump or a ramp. | (d) Simple machine |
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| Column A | Column B |
| a. Wooden block | i. complete dark park |
| b. Sun | ii. rectilinear propagation of light |
| c. Umbra | iii. opaque body |
| d. Eclipse | iv. luminous body |
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Changes of state from solid to gas. |
| Column A | Column B |
| 1. A magnet in which its poles are close to each other. | (a) Magnetic line of force |
| 2. A closed continuous curve moving from north to south outside the magnet. | (b) Magnetic compass |
| 3. An area around magnet where its influence can be detected. | (c) Tracing compass |
| 4. A device used by sailors to find geographic direction. | (d) Horse-shoe magnet |
| (e) Magnetic field |
| Column A | Column B |
| 1. Rolling friction | a. making grooved designs |
| 2. Static friction | b. regular oiling |
| 3. Reducing friction | c. a book placed on a table top |
| 4. Increasing friction | d. wheels of a car |
| Column A | Column B |
| 1. non – contact force | a. perpendicular to surface |
| 2. Catapult | b. an act of push or pull |
| 3. Force | c. unit of force |
| 4. Normal force | d. action-at-a-distance forces |
| 5. Newton | e. contact force |
| Column A | Column B |
| 1. A dark patch formed behind an opaque body, when it is placed in the path of light. | (a) Umbra |
| 2. A kind of shadow where no ray of light enters. | (b) Penumbra |
| 3. A kind of shadow partially illuminated by light. | (c) Shadow |
| 4. Characteristics of image formed by a pinhole camera. | (d) Lunar eclipse |
| (e) Real and inverted |
| Column A | Column B |
| (a) Needle | (1) class II lever |
| (b) Doorknob | (2) inclined plane |
| (c) Ramp | (3) wedge |
| (d) Lemon crusher | (4) Wheel and axle |
| Column A | Column B |
| 1. Transparent object | i. Shadows |
| 2. Eclipses | ii. Glass |
| 3. Translucent object | iii. Fluorescent tube |
| 4. Luminous object | iv. Tracing paper |
| 1. Length | a. kilogram |
| 2. Mass | b. cubic metre |
| 3. Area | c. metre |
| 4. Volume | d. square metre |
| Column A | Column B |
| 1. A thin and pointed magnetized steel needle used for finding geographic directions. | (a) Soft iron |
| 2. A pair of soft pieces of iron used in storing bar magnets. | (b) Steel |
| 3. A magnet which loses its magnetism as soon as the cause producing it is removed. | (c) Magnetic needle |
| 4. A material used for making permanent magnets. | (d) Electromagnet |
| (e) Magnetic keeper |