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Mr. Ds Density Test
Density and Matter
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. |