Vocabulary
What is mass?
The amount of matter in an object
Calculate the density.
mass = 15 g
volume = 30 mL
0.5 g/mL
What is buoyancy?
The upward force a fluid exerts on an object.
List three different units that can be used to measure volume.
Eg. mL, L, cm3, m3
How many colours are in a rainbow?
7
Give an example of a characteristic property.
Density
An empty container has a mass of 25 g. When 10 mL of a liquid are placed in it, the total mass is 50 g. Calculate the density of the liquid.
2.5 g/mL
If an object is more dense than a fluid, it will display _____________ buoyancy.
Negative buoyancy
List two ways to find the volume of an irregularly shaped object.
- Graduated cylinder
- Displacement can
What is the hardest natural substance on Earth?
Diamond
What is volume?
Amount of space an object occupies
A graduated cylinder contains 10 mL of water. When a 40.5 g aluminum cube is placed in the graduated cylinder, the water rises to 30 mL. What is the cube’s density?
2.025 g/mL
Give an example of neutral buoyancy.
Eg. submarine
What's the difference between mass and weight?
Mass: amount of matter
Weight: force of gravity acting on an object
Which city has the highest population density?
a) Mumbai
b) Baghdad
c) Toronto
d) Manila
d) Manila
What is density?
OR
Relationship between mass and volume.
What does positive buoyancy mean?
The object floats
Describe the density of an object with a large volume and low mass.
Low density
Which country has the highest population density?
a) Vatican City
b) Paris
c) Monaco
d) Milan
Monaco
How do ballast tanks in a submarine work?
Descending: ballast tanks fill with water
Ascending: air pumped into ballast tanks
True or false: It's possible for an object with more mass to float whereas a lighter object sinks.
True
Describe the density of an object with a small volume and high mass.
High density
What is the densest naturally occurring element?
Osmium