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Science TTK Review

MIDTERM

TermDefinition
thrust a forward movement
volume the measure of space occupied by a solid or a fluid
average speed the total distance traveled divided by the total time take to travel that distance
momentum a measure of how hard it is to stop a moving object
density the mass per unit volume of a substance
mass the amount of matter in an object
biomass burned materials that come from plants and animals
joule the SI unit of work and energy
reference point the starting point you use to describe the motion or the position of an object
acceleration am measure of the change in velocity during a period of time
newton the SI unit for force
velocity the speed and the direction of a moving object
kinetic energy energy due to motion
gravity an attractive force that exists between all objects that have mass
buoyant force an upward force applied by a fluid on an object in the fluid
inertia the tendency of an object to resist a change in its motion
energy the ability to cause change
friction a contact force that resists the sliding motion of two surfaces that are touching
machine any device that makes doing something easier
renewable energy resource an energy resource that is replaced as fast as, or faster than, it is used
non renewable energy resource an energy resource that is available in limited amounts or that is used faster than it is replaced in nature
transformation of energy when energy of one object transfers to another
gravitational potential energy energy stored between an object and the earth
pascal the SI unit for pressure
altitude how high you are
sealevel the land where sea would be
Created by: 2018grellerj