1. DENSITY MASS, WEIGHT & VOLUME
UNIT SUMMARY
BY: _____________________

2. DIRECTIONS:
Download this PPT to use it as a template for your assignment.
There are prompts on each slide with instructions.
Delete the instructions from the slide after you have completed the slide.

3. DISTINGUISHING BETWEEN MASS, WEIGHT AND VOLUME
TERM
DEFINITION
STANDARD INTERNATIONAL UNITS
MASS
WEIGHT
VOLUME
The formula to calculate weight is:
The formula for density is:

4. VOLUME Calculations
A box has the following dimensions: 5cm by 10 cm by 2 cm.
What is the volume of the box??

5. Relationship between mass and Weight
m = 120 kg
Formula:
Find the weight of 120 kg object on the earth.
Will it weight more or less on the moon? Why?

6. SAME MASS, DIFFERENT VOLUMES
EXPLAIN HOW TWO OBJECTS OF THE SAME MASS CAN HAVE DIFFERENT VOLUMES.
INCLUDE AN IMAGE SHOW THIS IDEA - HINT: IT TAKES A HUGE PILE OF FEATHERS TO HAVE THE SAME MASS AS A PILE OF ROCKS

7. SAME VOLUME, DIFFERENT MASSES
EXPLAIN HOW TWO OBJECTS OF THE SAME VOLUME CAN HAVE DIFFERENT MASS.
INCLUDE AN IMAGE SHOW THIS IDEA - HINT: IT TAKES A HUGE PILE OF FEATHERS TO HAVE THE SAME MASS AS A PILE OF ROCKS

8. DENSITY DEFINITION:
INCLUDE AN IMAGE TO HELP ILLUSTRATE THE DEFINITION.

9. Density of liquid water
Look in your Book of Physics on page 17 to help you with this on e.
What is the density of liquid water at 4o C?
If an iceberg’s mass is 300,000,000 grams, find its Volume.
Hint: The density of ice is g/(cm3)

10. Density Calculations
If a ball’s density is 2.3 g/mL, what is its volume if its mass is 6 g?
Will it float or sink in liquid water?

11. Density Calculations
If a ball’s density is 2.3 g/mL, what is its mass if its volume is 8 mL?
Will it float or sink in liquid water?

12. Density Calculations
Find the density of a box with a volume of 45 cm3 and a mass of kg.
Will it float or sink in liquid water?

13. Density Calculations
A 6 kg box has the following dimensions: 5 cm by 1 cm by 2 cm.
What is the density of the box??
Will it float or sink in liquid water?

14. You add water and alcohol to a graduated cylinder(GC)
You add water and alcohol to a graduated cylinder(GC). The density of alcohol is 0.91 g/mL. You drop a ball in to the GC with the liquid. The ball is more dense than alcohol and less dense than water. Sketch the liquids and the ball in the GC. Explain the behavior of the ball.

15. Container 1 with 45g of corn syrup occupies a space of 30 mL
Container 1 with 45g of corn syrup occupies a space of 30 mL. An object A sinks to the bottom of the container. The same Object A floats in container 2. What can you conclude about the density of the object A and the fluid in Container 2? 1 A 2

16. N 14 O 16 H 1 One Nitrogen atom has an atomic weight of 14 AMU’s.
One Oxygen atom has an atomic weight of 16 AMU’s.
One Hydrogen atom has an atomic weight of 1 AMU. N O H
Diatomic N
Diatomic O
Diatomic Oxygen (02) Diatomic Nitrogen (N2)
Analyze this:
Clouds are made of water vapor (H20).
Earth’s atmosphere is 99% nitrogen and oxygen. Atmospheric nitrogen and oxygen gases are ‘diatomic’ which means two atoms are paired together to form a molecule that floats around in the air. Use the information on the pages and your knowledge of density to explain how clouds can float.