| Terms |
Definitions |
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motion
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movement
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formal
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lxw, lxh, wxh
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vibrate
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move back and forth rapidly
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energy
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the ability to do work
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velocity is...
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speed in a particular direction
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Atoms and Molecule moving around produce what kind of energy?
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Kinetic
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fossils
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th preserved remains of plants, animals, or huans in sedimentary rock
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conductor
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a substance that allows electricity to easily travel through it
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Fossil Fuel
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A nonrenewable energy resource formed from the remains of organisms that lived a long time ago
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Measure of the average kinetic energy of the particles in a substance is called...
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Temperature
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conduct
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to allow an electric current to pass
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meteorology
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study of the earth's atmosphere and weather
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the force of attraction or repulsion some materials have on other materials
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magnetism
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the unit used to measure frequency is the
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hertz
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gravitational force
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between two objects depends on the masses of the objects and the distances between them
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a special inclined plane used to split things or move things or hold things in place
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wedge
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Over millions of years, the three different kinds of rock continuously change from one kind into another in this process called the ___________.
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rock cycle
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.0031 is equivalent to what number in scientific notation
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3.1x10-3
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a complete pathway of conductors that allows electricty to flow through it
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electric circuit
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What pulley system lets you pull down on the rope and cuts the weight of the load in half?
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Combined pulley
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Nearsightedness
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A condition in which the lens of the eyes focuses distant objects in front of rather than on the retina
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KINETIC ENERGY
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ENERGY AN OBJECT HAS DUE TO ITS MOTION.
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Ionization refers to the process of?
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loosing or gaining electrons.
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Electromagnetic Induction
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The process of creating a current in a circuit by changing a magnetic field
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Water can dissolve charged particles because
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its atoms have partial charges.
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When you observe an object, you know it is moving because ___________________.
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its position changes.
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one benefit of the SI system is that it is
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based on multiples of ten
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What is a spring scale used for?
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To measure the effort needed to lift a load in newtons
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absorptioin
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absorbed
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constant
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stays the same
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force
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a push or a pull
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vibrating
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rapid back and forth movements
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conductors ++++++ electrons to move freely
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allow
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Pigments are opaque substances that are used to color other materials. True or False
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True
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louds
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the sediments carried by a stream
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dissolve
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to form a solution with another substance
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Electric Generator
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A device that converts mechanical energy into electrical energy
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Movement of thermal energy from one substance to another
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Heat
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geothermal energy
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heat energy from inside the Earth
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nitrogen
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the most abundant gas in the atmosphere
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the ability to cause changes in matter
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energy
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the production of a spark is an example of
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current
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rolling friction
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makes a wheel roll forward or backward
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One or more simple machnes combined together
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complex machines
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dissolving
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when a substance is no longer visible when it is mixed in a liquid
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GRAVITATIONAL POTENTIAL ENERGY
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ENERGY AN OBJECT COULD POTENTIALLY GAIN IF IT FALLS, DEPENDING ON ITS MASS AND THE HEIGHT IT CAN FALL.
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conglomerate rock
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a sedimentary rock that consists of smooth pebbles embedded in hardened sand or clay
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the flow of electrical power or charge through a circuit
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electricity
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What is effort?
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The work needed to move a load
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the number of protons in the nucleus of an atom
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atomic number
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UNBALANCED FORCES
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NET FORCE IS NOT ZERO AND OBJECT ACCELERATES.
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For a scientific theory to be valid, it must allow you to?
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make predictions.
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Electromagnet
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A coil that has a soft iron core and that acts as a magnet when an electric current is in the coil
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Solubility refers to?
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grams of solute per 100 grams of solvent
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What does it take for matter to change from one state to another?
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energy or pressure
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magnets all have a notth and south ple
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norht + norht repel. n+s attract
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Often atoms join so that each atom will have?
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an outermost energy level that is full of electons.
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homo erectus
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"upright man"
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solar energy
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energy from the sun
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the path of a projectile is
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curved
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Is the Ability to do work
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Energy
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Charles Lyell
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the geologist who popularized uniformitarianism
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electricity
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a form of energy produced inside particles of matter
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Magnet
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Any material that attracts iron or things made of iron
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When the temperature of a substance increases, the speed of its particles also increases.
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True
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radiation
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transfer of thermal (heat) energy in the form of waves
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hydrogen bond
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the strongest of all intermolecular forces
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the movement of thermal energy from one place to another
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heat
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acceleration
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change in velocity over a given time period
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sliding friciton
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occurs when two surfaces slide past each other
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The different colors of light are called
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Visible Spectrum
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concentration
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the relative amount of a substance in a mixture
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DISPLACEMENT
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MEASURES THE CHANGE IN POSITION OF AN OBJECT AND INCLUDES DIRECTION.
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ionic bond
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type of chemical bond within a moleculer that involves the transfer of electrons from on atom to anothyer
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a material that allows energy to pass through
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conductor
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Potential Energy
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The energy that an object has because of the position, shape, or condition of the object.
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the weighted average of the masses of all the naturally occurring isotopes of an element
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atomic mass
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STATIC FRICTION
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KEEPS AN OBJECT AT REST; PREVENTS AN OBJECT FROM MOVING WHEN A FORCE IS APPLIED.
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Nuclear Chain Reaction
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A continuous series of nuclear fission reactions
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Covalent Bond
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A bond formed when atoms share one or more pairs of electrons
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A precise measurement is one that?
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is as exact as possible
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LAW OF CONSERVATION OF ENERGY
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STATES THAT ENERGY CANNOT BE CREATED OR DESTROYED, BUT ONLY TRANSFORMED FROM ONE FORM TO ANOTHER.
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3 examples of a physical change are
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boiling of water, bursting of a balloon, crumplinga piece of paper
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the second law says that one newton is.....
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1 N= the amount of force required to cause an object with a mass of 1 kg to accelerate at 1m/s2
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