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35 Cards in this Set
- Front
- Back
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A_____ has both magnitude and direction |
vector |
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A _____ has magnitude and no direction |
scaler |
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______ is the size or amount of something and includes a unit of measurement |
magnitude |
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every vector can be represented as the sum of its _____ |
components |
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If a book sits on a table the table exerts an upward _______ on the book |
normal force |
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the sum of two vector is called the ______ |
resultant |
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_______ is the relationship between a spring's change in length and the force it exerts |
Hooke's Law |
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A _______ vector shows an object's change in position |
displacement |
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external movement around the axis |
revolves |
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internal movement around the axis |
rotates |
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______ is the measure of how fast an objects rotates or revolves |
angular speed |
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An inward ____ is needed to move an object in a circle |
centripetal force |
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the ________ describes the relationship between mass, distance, and gravitational force |
law of universal gravity |
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an object's ____ is the average position of all the particles that make up its mass. |
control mass |
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A ____ is made up of only one type of molecule |
compound |
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A _____ is a physical combination of different compounds and or elements |
mixture |
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On what scale does water boil at 100degrees and freezes at 0 degrees |
celsius scale |
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the flow of thermal energy is called _____ |
heat |
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heat transfer through currents in air or water is called ____ |
convection |
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The mass of a body is the only property of that body that determines its _____ |
inertia |
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f X t |
impulse |
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if Sam pushes a block one meter with a force of one newton, he has done one _____ of work on the block. |
joule |
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the ratio of the output force to the input force is called ____________. |
mechanical advantage |
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The rate at which an appliance uses energy is indicated as the appliance's _______ |
power rating |
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the size of a scalar or vector quantity may be called its _______ |
magnitude |
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the vertical and horizontal components of a projectiles motion are _______ of one another |
independent |
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the MEASURE of the average kinetic energy of the atoms in an object is called ________ |
temperature |
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the SUM of the average kinetic energy of the atoms in an object is called _______ |
thermal energy |
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______ results from splitting or fusing atoms |
nuclear energy |
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When the force due to gravity equals the force due to air resistance, the speed of a falling object is called its ______. |
terminal velocity |
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The ______ states that the total amount of momentum in a closed system cannot change. |
law of momentum conservation |
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the mass of an object multiplied by its velocity equals its _____ |
momentum |
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stick together: collision |
inelastic collision |
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bounce off each other : collision |
elastic collision |
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nothing |
nothing |
