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Fluids Unit Test
| Question | Answer |
|---|---|
| What is a fluid? | A fluid is any substance that flows |
| What is a slurry? | A mixture of water and solid. |
| What is slurry technology? What is it used for? | The transportation of solids in water - 1. Paper Production - 2. Hydro-seeding - 3. Mining- Processing minerals |
| What is density? | Density is the ratio of mass to volume |
| What is buoyancy? | The tendency of an object in a fluid to rise or sink due to density differences with its surroundings |
| What is Archimedes principle? | The buoyant force on an abject is equal to the weight of the fluid displaced by the object |
| What is pressure? | The amount of force applied to a given area |
| What are two effects of pressure? | 1. It causes our ears to pop when we change altitude quickly 2. Air Balloon increases in pressure and explodes |
| What is parcels law? | When force is applied to an enclosed fluid the increase in pressure is transmitted equally to all parts of the fluid. |
| What is a hydraulic system? | Transfer of energy from flow and pressure, not from the kinetic energy of the flow. |
| What is compression? | The decrease in volume as a result of a force |
| What is a pneumatic system? | A system that uses a gas, usually air, under pressure to transmit a force |
| What is buoyant force? | s an upward force exerted by a fluid that opposes the weight of an immersed object. |