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Physical Science 6th

Reviewing for LEAP

QuestionAnswer
What are the 3 states of matter? solid, liquid, gas
What physical properties of a piece of paper? white, size, smooth, thin, lines
What are chemical properties of oxygen? flammable, causes iron to rust
How could paper change physically? cut the paper; color it
How could paper change chemically? burn it
What is boiling point? 212 degrees F; 100 degrees C
What is melting point? 32 degrees F; 0 degrees C
What is freezing point? 32 degrees F; 0 degrees C
Will the mass of the product of a chemical reaction be different than the reactants? no
What is atomic mass? number of neutrons AND protons
Is oxygen an element or compound? element
Is carbon dioxide an element or compound? compound
Is water an element or compound? compound
Is salt an element or compound? compound
Is hydrogen an element or compound? element
Is medicine an element or compound? compound
Is hydrogen peroxide an element or compound? compound
How does particle size affect the rate of a reaction? the smaller the size the faster the reaction
What is velocity? distance traveled in a unit of time in a direction
What is speed? distance traveled in a unit of time
What is acceleration? when one slows down, speeds up, or changes direction
What is acceleration? speeding up; positive acceleration
What is deceleration? slowing down; negative acceleration
What is constant speed? same rate of speed
What is average speed? speed averaged over a distance
What is a force? push or pull
What is balanced forces? no movement occurs
What is unbalanced forces? one force is stronger than the other; movement occurs
What is net force? total force used
What is inertia? an object at rest; an object in motion traveling at the same speed in the same direction until another force acts upon it
What is friction? rubbing of one body against another
What is gravity? force of an object on another object that depends on its mass and distance from the 2nd object
What is potential energy? stored energy
What is kinetic energy? energy in motion
What is a conductor? object that allows heat to travel through
What is an insulator? object that prevents heat from traveling through
What is transmission? allows for something to pass from one object to another
What is reflection? to pass back
What is absorption? does not allow something to go through
What is the law of conservation of energy? Energy is not created nor destroyed but changed from one form of energy to another
What is conduction? when heat is passed on by touching
Heat energy is transferred from high energy to lower energy.
What are the types of energy that can produce electricity? solar, thermal, wind, hydro
What is an exothermic reaction? reaction that releases heat
What is wavelength? distance from one wave to another (crest to crest or trough to trough)
41. What is renewable energy? energy that can be produced again
What is convection? Heat is passed on by molecules being heated, spread out, and rise. When the heated molecules cool off, the molecules come together and sink. Rising and sinking of the molecules cause a current.
What is radiation? Heat being transferred through solid, liquid, gas, or nothing.
What is an endothermic reaction? Reaction that cools off
What is frequency? number of waves in a specific amount of time
What is amplitude? from zero how high the wave reaches or from zero how low the wave goes
What is nonrenewable energy? energy that cannot be reproduced once it is used
What is inexhaustible energy? resources that will never run out
Created by: Jelliott
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