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Unit 1 Density
Terminolgy and density examples
| Question | Answer |
|---|---|
| What three units are the same for Density? | cm^3 = cc = mL |
| What equals density? | D = M / V |
| What equals Mass? | M = V x D |
| What equals Volume? | V = M / D |
| What goes on top of the Density triangle? | Mass |
| What is the Density of water | 1g / cc |
| If an object has a volume of 40 mL and weighs 20 grams, what is its density | D = M / V, 20g / 40mL = 0.5 g / mL |
| if an object has a density less than one will it float or sink? | Float |
| You are given a piece of wood that is maple, teak, or oak. The piece of wood has a volume of 100 cc and a mass of 98 g. What is the identity of the piece of wood given the following densities? | D = M / V, 98g /100cc = 0.98 g / cc |
| What is the mass of a femur having a volume of 118 cc? The density of bone is 1.8 g/cc. | M = V x D, 118cc x 1.8g/cc = 212.4 g |
| Aluminum still has a density of 2.7 g/cc. If a piece of aluminum has a mass of 27 g, what is its volume? | V = M / D, 27g / 2.7g/cc = 10 cc |
| What would be the volume of a sample of water weighing 550 mg? | 550 x 1g / 1000mg =0.55 g, V = M / D , 0.55g / 1g/cc= 0.55 cc. |
| What equals Thickness? | T = V / A |
| If a piece of gold foil 4 cm x 5 cm has a mass of 1.5 g, and a density of 19.3 g/cc, what is the thickness of the foil? | T = V / A, V= M / D , 1.5g / 19.3g/cc =0.078 cc 4cm x 5 cm =20 cm^2, 0.078cc / 20cm^2 = 0.0039 cm |
| What happens when you dive cm^3 by cm^2 | The unit will become cm |
Created by:
edith1234
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