| 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 |
| Column A | Column B |
| 1. Non-contact forces | d. action-at-a-distance forces |
| 2. Catapult | c. contact force |
| 3. Force | b. an act of push or pull |
| 4. Normal force | a. perpendicular to surface |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| 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. 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. 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 |
| 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 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 |
| 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 |
| 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. iron and gold | a.changes from solid to liquid |
| 2. melting | b. pure substance |
| 3. intermolecular space | c. non-metals |
| 4. compound | d. the space between the molecules |
| e. metals |
| 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 |