What is density Density is a comparison of
- Slides: 25
What is density? Density is a comparison of how much matter there is in a certain amount of space.
Which one is more dense?
Now which one is more dense?
What is density? The amount of mass in a given volume.
The Formula For Density • Density = mass OR volume mass ÷ volume.
Units for density: g cm 3 Why are these the units for density? ALWAYS REMEMBER UNITS!
Let’s try a density problem together. Frank has a paper clip. It has a mass of 9 g and a volume of 3 cm 3. What is its density? On your table try and find the density. • Density = mass volume OR mass ÷ volume.
Frank has a paper clip. It has a mass of 9 g and a volume of 3 cm 3. What is its density? • Density = mass OR mass ÷ volume Density = 9 g ÷ 3 cm 3 = 3 g/cm 3
Frank also has an eraser. It has a mass of 3 g and a volume of 1 cm 3. What is its density? • Density = mass OR mass ÷ volume
Answer Frank also has an eraser. It has a mass of 3 g and a volume of 1 cm 3. What is its density? • Density = mass OR volume 3 ÷ 1=3 g/cm 3 mass ÷ volume.
Work on these problems with your neighbor. 1. ) Jack has a rock. The rock has a mass of 6 g and a volume of 3 cm 3. What is the density of the rock? 2. ) Jill has a gel pen. The gel pen has a mass of 8 g and a volume of 2 cm 3. What is the density of the rock?
Answer 1. Jack has a rock. The rock has a mass of 6 g and a volume of 3 cm 3. What is the density of the rock? • Density = mass OR volume 6 ÷ 3= 2 g/cm 3 mass ÷ volume.
Answer 2. Jill has a gel pen. The gel pen has a mass of 8 g and a volume of 2 cm 3. What is the density of the rock? • Density = mass OR volume 8 ÷ 2=4 g/cm 3 mass ÷ volume.
Now, try these on your own. 3. ) Al’Licia has a watch. It has a mass of 4 g and a volume of 2 cm 3. What is the density of the watch? 4. ) Mia has a wallet. It has a mass of 15 g and a volume of 5 cm 3. What is the density of the wallet?
Answers 3. 4. • mass ÷ volume. 4 ÷ 2=2 g/cm 3 15 ÷ 5=3 g/cm 3
Liquid Layers • Check out this picture. Which layer has the highest density? • Which layer has the lowest density? • Imagine that the liquids have the following densities: – 10 g/cm 3. – 6 g/cm 3. 3 g/cm 3. 5 g/cm 3. • Which number would go with which layer?
3 g/cm 3 5 g/cm 3 6 g/cm 3 10 g/cm 3
Liquid Layers – Try with your neighbor • Which liquid has the highest density? • Which liquid has the lowest density? • Which liquid has the middle density?
• Which liquid has the highest density? Golden Syrup • Which liquid has the lowest density? Oil • Which liquid has the middle density? Water
Measuring the Volume by Displacement of Water 1. Take the initial reading (without the object). 2. Place the object in the cylinder. 3. Take the final reading. 4. Subtract the original amount from the final amount.
Mistakes
Try this with your partner. 1. Take the initial reading (without the object). 2. Place the object in the cylinder. 3. Take the final reading. 4. Subtract the original amount from the final amount.
Original volume = 200 cm 3 Final volume = 260 cm 3 260 cm 3 - 200 cm 3 = 60 cm 3 Object volume = 60 cm 3
What is the volume of the Toy Dinosaur?
Original volume = 4. 8 cm 3 Final volume = 5. 6 cm 3 5. 6 cm 3 – 4. 8 cm 3 =. 8 cm 3 Object volume =. 8 cm 3
- Direct comparison test
- Nda full dac
- Fcc planar density
- Arithmetic density ap human geography
- Physiological density vs arithmetic density
- Linear density and planar density
- Sg formula
- Distributed file system comparison
- Whats an adc
- Contrast connectors
- Difference between 8086 and 80286
- Visual comparison test
- Piscatorial creatures examples
- What is definition
- Generator comparison
- Arm cpu comparison
- Predicate device comparison table
- Macromolecule comparison table
- Adverbs that compare
- Jazz fantasia poem
- Bad comparative of superiority
- Data analysis qualitative
- Pico patient
- A comparison between two things using like or as
- Ssri side effects chart
- Scanner