Shared Flashcard Set

Details

Chapter 8 key terms
Fluids are affected by forces, pressure, and heat.
15
Science
8th Grade
12/04/2012

Additional Science Flashcards

 


 

Cards

Term
Force
Definition
A push or pull that acts on a object, it can cause an object to move or stop, it can change the direction of an moving object, and it can also change the shape of an object.
Term
Friction(force)
Definition
Works to slow down or stop motion due to surfaces rubbing against each other.
Is considered a contact force.
Term
Gravitation(force)
Definition
The force of attraction between objects because they have mass.This force depends on the masses and distance of the objects.The closer the object is and the more mass the other object has, the more gravity pulls on the lower mass object.
Is considered an action-at-a-distance force.
Term
Magnetic(force)
Definition
Only acts on certain metals and compounds like iron, nickel, and colbat. Natural magnets like Earth and electromagnets have a field around that can exert pushing and pulling forces.
Is considered an action-at-a-distance force.
Term
Weight
Definition
Weight is different from mass because weight depends on gravity. It is the amount of force on an object due to gravity.
Term
Compression
Definition
The decrease in volume produced by a force. Gases are easily compressible since it's particles are spread further apart than solids and liquids.
Term
Kilopascal
Definition
The kilopascal is 1000 times larger than the pascal, it was made because the pascal was too small amount to be measured.
kilopascal=kPa
Term
Pascal
Definition
The pascal is an unit for pressure,and basiclly means N/m2. The pascal is named in the honor of French scientist Blaise Pascal.
pascal=Pa
Term
Pressure
Definition
The amount of force acting over a given area on an object.
Formula:pressure(P)=force(F)/area(A)
Term
Adhesion
Definition
Adhesion is attraction or joining of two different objects or fluids to
each other. Fluids are sometimes attracted to surfaces and stick to
them.
Term
Cohesion
Definition
Cohesion is the strength of fluid that sticks on an object. This has great effect on the way water molecules flow.
Term
Surface tension
Definition
The property of liquid which the surface of liquid that acts like a membrane.Surface tension is great enough to support objects that would normally sink in water because of their
density.
Term
Area
Definition
The amount of space taken up by a flat surface. Is usually measured in cm2, m2, or km2.
formula:A=l*w
Term
Flow rate
Definition
The flow rate is the speed at which
a fluid flows from one point to
another.
Term
Viscosity
Definition
The resistnace of a fluid to flow. The slower the fluid flows the greater the viscosity.
Supporting users have an ad free experience!