Physical Science Words 03/18/2013 Flashcards
Balanced Force
bal·anced force
- *Part of Speech:** noun
- *Own:** forces that are equal in all except direction; even
- *Dictionary:** forces that cancel each other out because they are equal in size
- *Antonym:** disproportioned; unbalanced force
- *Synonym:** equilibrium; equated
While it’s hard to comprehend, 100 pounds of feathers and 100 of bricks are balanced forces.
Chemical Change
- a change in one or more substances, caused by a reaction, that forms new and different substances
Compound
- a substance made of two or more different atoms that have combined chemically
- a substance formed by at least two types of atoms that are chemically combined
Conduction
- heat transfer between two objects that touch
Convection
- transfer of thermal energy by movement of a liquid or gas
Density
- is found by dividing the mass of an object by its volume
- mass per unit of volume in a substance
Dissolve
- when something breaks up into particles so tiny they can’t be seen even with a microscope
- when something is mixed into something else and disappears
- a substance mixed into something (liquid) to make a solution
Element
- matter that is made of only one kind of atom
Friction
fric·tion
- *Part of Speech:** noun
- *Own:** a rubbing or discord caused by difference
- *Dictionary:** a force that acts between two touching objects and that opposes motion
- *Antonym:** NONE
- *Synonym:** irritation; erosion
The friction between the magnifying glass and the grass created fire.
Gravity
grav·i·ty
- *Part of Speech:** noun
- *Own:** the attraction between celestial bodies; forces of attraction
- *Dictionary:** the force of attraction between two objects, such as the attraction between Earth and objects on it.
- *Antonym:** weightedness
- *Synonym:** heaviness; weight
The gravity chamber at NASA was incredible.
Inertia
in·er·tia
- *Part of Speech:** noun
- *Own:** unwillingness to move; stillness
- *Dictionary:** The property of matter that keeps it moving in a straight line or keeps it at rest
- *Antonym:** activity; moving
- *Synonym:** laziness; inactivity
You have to fight inertia if your car is in neutral.
Mass
- the amount of matter in something
Mixture
- a combination of two or more different substances in which the substances keep their identities\
- two substances physically combined and easy to separate
Momentum
mo·men·tum
- *Part of Speech**: noun
- *Own:** force of speed of movement
- *Dictionary:** A measure of how hard it is to slow down or stop an object
- *Antonym:**
- *Synonym:** force; drive; thrust
The momentum at which he was running would have made a cheetah jealous.
Parallel Circuit
Par·al·lel Cir·cuit
- *Part of Speech:** noun
- *Own:** consisting of or having component parts connected in the same direction
- *Dictionary:** an electric circuit that has more than one path for the electric charges to follow
- *Antonym:** Series Circuit
- *Synonym:**
The lights in my backyard run on a parallel circuit.
Physical Change
- a change in which the form or shape of a substance changes but the substance still has the same chemical makeup
Properties
- they are the characteristics used to describe or identify something
Radiation
- transfer of energy in the form of waves
- transfer of thermal energy by electromagnetic waves
Series Circuit
Se·ries Cir·cuit
- *Part of Speech:** noun
- *Own:** a circuit having its parts connected in order
- *Dictionary:** an electric circuit in which the electric charges have only one path to follow
- *Antonym:** Parallel Circuit
- *Synonym:** NONE
The entire school’s cafeteria runs on a series circuit.
Solute
- the substance dissolved in a given solution
Solution
- a mixture that has the same composition throughout because all the parts are mixed evenly
- a mixture that has the same composition throughout
- a type of mixture where one substance can be dissolved by another
Solvent
- a liquid used to dissolve a substance
- a substance that dissolves another to form a solution
Unbalanced Force
un·bal·anced force
- *Part of Speech:** noun
- *Own: f**orces that are unequal and are on an object; not even
- *Dictionary:** forces that cause a change in motion because they act on an object and don’t cancel each other out
- *Antonym:** balanced force; sound
- *Synonym:** irregular; unstable
The ocean waves cause an unbalnced force which makes floating objects sway in their direction.
Velocity
ve·loc·i·ty
- *Part of Speech:** noun
- *Own:** speed of motion or action; swiftness
- *Dictionary:** An object’s speed in a particular direction
- *Antonym:**
- *Synonym:** acceleration; rapidness
He drove at such a high velocity, the car flipped over.
Volume
- the amount of space a solid, liquid or gas takes up
- the amount of space something takes up
