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Mr. Ds Density Test
Density
| Question | Answer |
|---|---|
| How do you calculate the density of a material? | Density = mass / volume |
| When two materials are added together how can you tell which will float and which will sink? | The higher density material will always sink. |
| Matter | Anything that contains both mass and volume |
| What is density? | a ratio of mass to volume; the number of atoms or particles in a space. |
| What is volume? | the space an object takes up |
| What is mass? | the amount of matter or particles an object contains |
| What is weight? | the force of gravity acting on an object |
| What is a difference between mass and weight? | mass never changes but weight changes with gravity |
| What is a similarity between mass and weight? | both are the same on earth |
| Does changing the size of material change its density? | no, density is ratio regardless of the size, the ratio of mass:volume always stays the same. |
| What determines if something sinks or floats? | density determines if something sinks or floats; if the density is higher than the material it is in, it will sink. |
| What is a ratio? | A comparison of two numbers, for example mass:volume. |
| If the mass of an object is 0.5 grams and the volume is 2.5 ml, what is the density of this material? | 0.2 g/ml |
| what is the formula for determining the density of a material? | density = mass/volume |