Column A | Column B |
1. A force called into play when one body is made to slide upon another body | (a) Newton |
2. Sl unit of force. | (b) Streamlined |
3. A unit which is equivalent to weight of a body of mass 1 kg. | (c) Force of friction |
4. The materials used for reducing friction. | (d) 1 Kgf |
| (e) Lubricants |
Column A | Column B |
1. A force called into play when one body is made to slide upon another body | (c) Force of friction |
2. Sl unit of force. | (a) Newton |
3. A unit which is equivalent to weight of a body of mass 1 kg. | (d) 1 Kgf |
4. The materials used for reducing friction. | (e) Lubricants |
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| Column A | Column B |
| 1. Work done | a. sound energy |
| 2. Burning of charcoal | b. solar energy into electrical energy |
| 3. Coiled spring in a watch | c. heat energy |
| 4. Vibrating bodies | d. force X displacement |
| 5. Solar cells | e. elastic potential energy |
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | occupy space |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| Column A | Column B |
| (1) Length | a. kilogram |
| (2) Mass | b. cubic metre |
| (3) Area | c. metre |
| (4) Volume | d. square metre |
| Column A | Column B |
| 1. An example of simple machine called wheel and axle. | (a) Fixed pulley |
| 2. An example of lever of third order. | (b) Oil or grease |
| 3. An example of lever of second order. | (c) Door knob |
| 4. A material used for reducing friction at the movable parts of machine. | (d) Nut cracker |
| (e) Fire tongs |
| 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. The magnitude of prefix mega. | (a) °C |
| 2. The magnitude of prefix milli. | (b) 37 deg * C |
| 3. The symbol for degree celsius. | (c) 100 |
| 4. The normal temperature of a healthy person. | (d) 10 ^ 6 |
| (e) 10 ^ - 3 |
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
| Column A | Column B |
| 1. A force when applied on a object, brings the object closer to us. | (a) Electrical force |
| 2. A force called into play only when an object is made to slide upon another object. | (b) Mechanicalforce |
| 3. A force which attracts tiny bits of dry paper or straw. | (c) Muscular force |
| 4. A force which makes the sail boat to move. | (d) pull |
| (e) consequentialforce |
| 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 |
| 1. Non-contact forces | a. perpendicular to surface |
| 2. Catapult | b. an act of push or pull |
| 3. Force | c. contact force |
| 4. Normal force | d. action-at-a-distance forces |