9th Physics Chapter7 Properties of Matter
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | If the volume of a substance increases, but its mass remains constant, what happens to its density? | Increases | Decreases | Stays the same | happens | 2 | Which of the following is an example of a non-newtonian fluid? | Water | Honey | Gasoline | Air | 3 | The fourth state of matter is called: | Solid | Liquid | Gas | Plasma | 4 | The number of perpendicular components of a force are: | 1 | 3 | 4 | 2 | 5 | What should be the approximate length of a glass tube to construct a water barometer? | 11 m | 2.5 m | 1 m | 0.5 m | 6 | According to Hooke,s law | stress x strain = constant | stress/strain = constant | strain/stress = constant | stress = strain | 7 | Which of the substance is the lightest: | Copper | Mercury | Aluminium | Lead | 8 | The mass of an object on Earth is 60 kg. What is its weight (force due to gravity) on Earth? (Take g = 9.8 m/s²) | 588 N | 60 N | 9.8 N | 6 N | 9 | The density of a substance can be found with the help of : | pascal,s law | Hooke,s law | Archimedes principle | Principle of floatation | 10 | What is the formula for calculating density? | Density = Mass/Volume | Density = Volume/Mass | Density = Mass × Volume | Density = Mass - Volume | 11 | A spring balance measures: | Mass | Weight | Volume | Density | 12 | The phenomenon of change of a liquid into a gas at any temperature below its boiling point is called: | Melting | Evaporation | Condensation | Sublimation |