Fluids
This is a substance that can change shape
Fluid
This is obtained when mass is divided by volume of an object
density
What does a hydrometer measure?
Density
What is viscosity?
Resistance of a fluid to flow
A substance with a mass of 12g and density of 6g/ml has this volume
2 ml
All life on earth needs this fluid to live
Water
Which is more dense: a solid or a gas?
A solid
The lower the hydrometer sinks the _____ dense the liquid
Less
As temperature decreases, viscosity ________
Increases
what is the density of a 2.5 cm3 glass marble that has a mass of 7.5 g?
3
Provide one example of a fluid
Water, gasoline, juice, oil, air, ect.
What is buoyancy?
The ability of an object to float
Provide an example of where hydrometers are used in real life
Laboratories, brewers, liquid food production
Low viscosity fluids have a ________ flow rate
Higher
what is the volume of 20 g of a liquid with density equals 1g/ml
20 ml
True or false: a gas is a fluid
True
This is how you can predict whether an object will float or sink in a fluid
Density
The higher a hydrometer floats in a liquid, the ____ the density of the liquid
higher/more
What is the equation for flow rate?
Flow rate= distance travelled/time
28 g of iron is added to graduated cylinder containing 45 ml of water. The water level rises to the 49 ml mark. From this information calculate the density of iron.
7g/ml
Provide one example of how a living thing uses fluids
Examples may include: circulatory system, respiratory system, root systems, fish bladders, ect.
If I have 1mL and 1L of maple syrup, does the density of the maple syrup change?
No
Salt water had a higher or lower density than regular water?
Higher
A fluid travels 80m in 20s. What is the flow rate?
4m/s
What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3.
238.09