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McCoyPhySciFinalRev

McCoyPhySciFinalReview

QuestionAnswer
The rate at which something moves Speed
The rate at which velocity changes Acceleration
Speed in a direction Velocity
What does a horizontal line mean on a speed graph Stopped
What does a diagnol line mean on a speed graph Constant speed
What does a horizontal line on an acceleration graph mean Constant speed
What does a diagnol line on an acceleration graph mean Accelerating
Mass times velocity Momentum
Energy determined by an objects position Potential Energy
Energy an object has in motion Kinetic Energy
Energy can neither be created nor destroyed Law of Conservation of Energy
Law of inertia-in motion or at rest stays in motion or at rest unless acted upon Newton's First Law
Force depends on mass and acceleration Newton's Second Law
Force pairs- Every action has an equal and opposite reaction Newton's Third Law
Energy from the center of the earth Geothermal
Energy from the sun Solar
Potential and kinetic energy together Mechanical
Movement of electrons Electricity
Once the nucleus is split the atom can no longer be used making this what type of resource Nonrenewable
Organic matter that can be used as fuel Biomass
If an object has a density less than water what will it do Float
Ability to do work Energy
Object moved in the direction of the force Work
Rate at which an object does work Power
What are the units for work Joules
What are the units for power Watts
Simple machine that pivots around a fixed point Lever
Fixed point that a lever pivots around Fulcrum
Class of lever that has the fulcrum in the middle First
Changes the size or direction of the work Simple Machine
More than one simple machine Compound Machine
How well a machine overcomes friction Mechanical Efficiency
How much more force the machine is doing than you are Mechanical Advantage
Thermal energy transferred from one substance to another Heat
Average kinetic energy Temperature
Energy is absorbed Endothermic
Energy is given off, lost Exothermis
A new substance is formed Chemical change
Substance retains it's identity Physical change
Found on the periodic table, pure Element
Two or more elements combined chemically Compound
Mixture that you can see the individual parts Heterogenous
Mixture that you can not see the the individual parts Homogenous
Water vapor changes to water Condensation
Water changes into water vapor Evaporation
No temerature increase at this point, energy being added or taken away Phase change
Fastest moving particles Gas
Slowest moving particles Solid
Solid directly to a gas Sublimation
Fire is an example of this Plasma
Movement of heat in gas or fluid Convection
Movement of heat thru dierect contact Conduction
Movement of heat by waves thru space Radiation
Electricity built up on an object Static
Electric charges that move thru matter Electric current
Energy source, wire, load Circuit
Charge moves easily through this material Conductor
Chrage does not move easily through this material Insulator
Opposition to current Resistance
Potential difference Voltage
When broken must be replaced Fuse
Stretched into a wire Ductile
Hammer into thin strips Malleable
Solid that has molecules arranged in a pattern Crystalline
Solid that has molecules in no pattern Amorphous
Elements on the far right side of the periodic table Nonmetals
Elements that have properties of both metals and nonmetals Metalloids
Units for resistance Ohms
How many waves pass a certain point in a given time Frequency
The distance a wave moves in a period of time Wave Speed
Waves that bounce back from the surface Reflection
Waves that bend or change direction Refraction
Waves that bend around an object Diffraction
High point of a wave Crest
Low point of a wave Trough
Distance from rest to crest Amplitude
Two or more waves combine to form a greater wave Constuctive
Two or more waves combine to form a smaller amplitude Destructive
Waves that move in a parallel direction Longitudinal
Waves that move perpendicular Transverse
When pressure decreases volume increases Boyles Law
When temperature increases volume increases Charles Law
Maximum amount of solute dissolved Saturated
More solute than can dissolve Supersaturated
More solute can be dissolved Unsaturated
Solution that does the dissolving Solvent
Anything that has volume and mass Matter
Amount of space something takes up Volume
Amount of matter something has Mass
Changes depending on its location relative to the Earth Weight
Combination of two or more substances that are not chemically combined Mixture
When an object changes position over time Motion
A push or a pull Force
Results from combining all of the forces exerted on an object Netforce
Results from combining all velocities Resultant Velocity
When netforce is zero Balanced
A force that opposes motion between two surfaces that is touching Friction
Type of friction that move across a surface for a short distance; large force Sliding
Friction between wheels and a surface; small force Rolling
Friction between an object and a liquid or gas; causes things to be slippery Fluid
Force applied, but no movement occurs Static
The unbalanced force that cause objects to move in a circular path Centripetal
1. Curved path an object follows when Motion thrown or propelled near the surface of the earth Projectile
Vertical column on a periodic table Group
Horizontal row on a periodic table Period
Combined number of protons and neutrons Atomic Mass
Device that makes work easier by changing the size or direction of the force Machine
Created by: mmccoy