A state of matter that has a definite shape and volume
What is a solid
100
Mixtures that look as though they have only one set of properties, such as paints
What is homogenous mixtures
100
The measure of how fast a fluid will flow; the "thickness" or "thinness" of a fluid.
What is viscosity
100
The amount of mass in a certain unit volume of a substance.
What is density
100
What instrument is used to measure air pressure?
What is a barometer
200
What instrument is used to measure density?
What is a hydrometer
200
A substance that dissolves a solute to form a solution
What is a solvent
200
The measurement of how fast a fluid runs from one point to another is called __________________ and how do you calculate it?
What is Flow rate
Divide distance travelled by the time
200
List the equation for calculating:
Density:
Mass:
Volume:
D= m/v
M= d x v
V= m/d
200
What is the formula for:
Pressure:
Area:
Force:
P= F/A
A=F/P
F= A x P
300
What is Archimedes’ principle?
Archimedes’ principle: The buoyant force acting on an object equals the
weight (force of gravity) of the fluid displaced by the object.
300
What is the universal solvent?
What is water
300
How can the particle model be used to predict the effect of
temperature on a liquid’s flow rate?
Particles move faster when heated
300
__________ is the force of gravity
exerted on an object
What is weight
300
What is the unit for pressure that is used here in Canada?
What is another way to express this unit?
What is Newtons per meters squared which is also called a Pascal (Pa)
400
Why can gases be compressed?
There are spaces in between the particles.
400
Name three ways of making a solute dissolve faster
What is Agitation, heat, pressure
400
Name two industries in which viscosity is important and why
What is Paint, cosmetics, salad dressing/food products etc
400
Explain why a ship made of steel can float on water
Average density - the total mass of all substances on board divided by the volume
Large hollow hull filled with air makes the average density lower than water
400
Devices that transmit applied forces through air pressure to move something else are called
What is pneumatic systems
500
Name 1 machine that uses a hydraulic system and one machine that uses a pneumatic system
Answers may vary
500
List the solvent and solute for:
Ocean Water
Solvent - Water
Solute - Salt
500
List two materials that have a low viscosity and two that have a high viscosity
Answers may vary
500
When gravity = buoyancy, this condition is known as
What is neutral buoyancy
500
What is the name of a hydraulic system in the human body?