Matter 4/3

1. Matter 4/3

2. Matter I. Matter a. Matter is what the universe is made out of (atoms) b. Matter is anything that has mass and volume

3. II. Physical Properties a. characteristics of matter that can be observed without changing the identity of the substance • Color • Freezing Point • Boiling Point

4. What’s in the bag?

5. 1. Specific Properties a. color b. odor c. size d. shape e. texture f. hardness

6. Physical Properties?

7. 2. General Properties a. mass b. volume c. density d. weight

8. III. Mass a. mass- the amount of matter in an object ** it does not change from one place to another

10. b. Mass and Inertia 1. inertia- the resistance of an object to changes in motion 2. the more mass an object has, the greater its inertia

11. More mass = greater inertia

13. 3. mass is measured in grams (g) and kilograms (kg) 1000mg = 1 g 1000g = 1 kg

14. A dime is about 1 gram

15. Volume

16. III. Volume a. volume - the amount of space an object takes up

17. Solids are measured in cubic centimeters or centimeters cubed (cm ) 2. Volume = length x width x height V = L x W x H 3

18. V = L x W x H4cm x 6cm x 5cm = 120cm 3

19. 3. Liquids are measured in milliters (ml) and liters (L) 4. 1000ml = 1 liter 1000 liters = 1 kiloliter

20. 3 3. 1ml = 1cm 1ml

21. 1cm = 1ml 3

22. Examples = 15 cm = ______ ml 25 ml = ______ cm 3 3

23. Examples = 15 cm = 15 ml 25 ml = 25 cm 3

25. Density

26. IV. Density a. density- a measure of how much mass is contained in a given volume of an object

27. 1. in other words, it’s how much matter is contained in a certain amount of space

28. Which is more dense?

29. Formula: Be able to Solve B. Density = mass volume

30. B.Density = mass (g) volume (ml or cm ) D = m v 3

31. c. In order to compare the masses of two objects, the objects must be equal in volume.

32. Examples: if an object has a mass of 50g and a volume of 10cm3, what is its density? D = m v D = 50g/10cm3 D = 5g/cm3

33. Example: If a liquid has a volume of 5ml and a mass of 10 g, what is its density? D = m/v D = 10g/5ml D = 2g/ml

34. 3 Example: If the density of a diamond is 3.5g/cm and its volume is .5cm , what is its mass? mass = d x v mass = 3.5g/cm3 x .5cm3 mass = 1.75g 3

35. *d. The density of fresh water is 1g/ml - if an object has a density less that 1g/ml it will float in fresh water - if the object has a density greater than 1 g/ml It will sink in fresh water

38. Weight4/20/12

39. V. Weight A. Weight- The measure of the force of gravity between objects 1. gravity- the force of attraction between objects

40. 2. the greater the mass of an object the greater its gravitational force 3. Your weight is a direct measure of the planet’s force pulling you toward it center.

42. B. Weight = gravity x mass Weight = 9.8m/s/s x the object’s mass Ex. Weight = 9.8m/s/s x 3kilograms = 29.4 kg m/s/s or 29.4n

43. C. Weight can be measured in newtons (N) or pounds (lbs.) — about every 1 pound = 4 newtons

44. Example: If an object has a mass of 50kg, what is its weight in newtons? Weight = gravity x mass W = 9.8m/s/s x 50kg W = 490N

45. Example: If an object weighs 500N, what is its mass? weight = gravity x mass 500N = 9.8m/s/s x mass 51kg = mass