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35 Cards in this Set
- Front
- Back
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conduction
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transfer of thermal energy due to collisions of matter
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thermal conductor
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material in which thermal energy moves quickly
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thermal insulator
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material in which thermal energy moves slowly
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convection
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transfer of thermal energy by the movement of particles from one part of a material to another
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radiation
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transfer of thermal energy from one object to another by electromagnetics waves
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energy
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the abililty to cause change
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kinetic energy
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energy due to motion
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potential energy
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stored energy due to the interactions between objects or particles
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work
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transfer of energy that occurs when a force makes an object move in the direction of the force while the force is acting on the object
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mechanical energy
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sum of potential & kinetic energy in a system of objects
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sound energy
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energy that sound carries
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thermal energy
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sum of kinetic and potential of the particles that make up an object
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electric energy
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energy an electric current carries
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radiant energy
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energy that electromagnetic waves carry
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nuclear energy
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energy that is stored and released in the nucleas of an atom
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law of conservation of energy
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energy can be transported from 1 form to another, but energy can't be created or destroyed
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friction
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force that resists the rubbing of 2 surfaces that are touching
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reference point
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starting point you choose to describe the location, or position of an object
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heat
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thermal energy moving from a region of high temperature to a region of lower temperature
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position
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describes an objects distance and direction from a refrence point
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displacement
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difference between the starting position and final
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motion
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process of changing position
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speed
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distance an object moves in an unit of time
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velocity
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speed and direction of a moving object
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acceleration
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measure of the change in velocity during a period of time
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distance-time graph
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graph that shows how the line is related
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speed time graph
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shows speed of an object on the y-axis and time on the x-axis
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force
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push or pull on an object
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contact force
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push or pull on an object by touching
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noncontact force
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push or pull without touching it
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gravity
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attractive force that exists by all objects that have mass
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air resistance
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frictional force between air and objects moving thru it
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1st law of motion
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net force acting on an object is 0 the motion of an object that doesn't change
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2nd law of motion
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states that accleration of an object is equal to net force exerted on the object divided by an objects mass
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3rd law of motion
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every action there is an equal and opposite reaction
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