Vocabulary Flashcards
Matter
Anything that takes up space and can be weighed.
Homogeneous Mixture
A mixture that has the same composition throughout the whole thing.
What is another word for homogeous mixture?
A solution
Heterogeneous Mixture
A mixture in which the composition is not the same throughout the whole thing.
Colloid
A mixture with very small particles that are distributed equally.
Suspension
A heterogeneous mixture of finely distributed particles.
Element
A basic part of a whole
Compound
A substance is made up of two or more different elements that are chemically bonded together.
Melting point
The temperature at which an object melts.
Freezing Point
The temperature point at which a liquid freezes.
Boiling point
The point at which a liquid starts to boil and evaporate.
Freezing
When a liquid turns into a solid at a cold temperature.
Melting
When a solid turns into a liquid at a very hot temperature.
Vaporization
When a liquid gets hot and turns into a gas.
Evaporation
liquid turning into gas below its boiling point.
Boiling
liquid turning into gas at its boiling point.
Bose-Einstein condensate
Gas from elements lighter than air
Independent variable
A variable that doesn’t need another variable.
Dependent Variable
A variable that depends on the independent variable
Motion
A change in position
Reference point
A place that you use for comparison when measuring an object’s motion.
Average Speed
the average speed at which an object has traveled over time.
Instantaneous speed
Speed measured at any given moment
Velocity
The measure of how fast something is going in a given direction
Acceleration
How fast an object speeds up.
Force
An action that changes or maintains the motion of a body or object.
Net force
The sum of all forces pushing and pulling on an object
Newtons
A measurement used to measure force.
Balanced forces
When 2 forces are the same strength but act in different directions.
Unbalanced Forces
when the force applied to an object is bigger than another.
Inertia
The tendency of a body to resist a change in motion or rest
Friction
A force between 2 objects that are in contact.
What are the three types of friction?
1) Static
2) Sliding
3) Rolling
Air resistance
The frictional force that air exerts against a moving object
Gravity
An invisible that pulls objects to the center of the earth
Law of Universal Gravitation
Every particle is attracted to the other particles in the universe.
Momentum
Mass in motion
Law of conservation of motion
The momentum of a system is content if no external forces are acting on the system.
Newtons 1st Law
An object remains at rest until acted upon by another force
Newtons 2nd law
It needs to force to accel (Think cars)
Newtons 3rd Law
Every action has its equal opposite reaction
Potential Energy
Stored energy
Gravitational PE
The energy stored in an object due to its height and position
Chemical PE
The energy stored in the chemical bonds of a substance (Bomb)
Elastic PE
Energy stored as a result of applying force to an elastic object (Stretched-out rubber band)
Kinetic Energy
Energy an object has because of its motion
Mechanical Energy
Total Energy (KE + PE)
