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20 Cards in this Set
- Front
- Back
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Scalar Quantity
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quantity that indicates magnitude only
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Vector Quantity
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quantity that indicates magnitude and direction
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Acceleration
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change in velocity during a specific time interval
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Force
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push or pull applied to an object; measure in newtons
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Inertia
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if an object is not moving, it will remain motionless unless a force is applied to it
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Work
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a measure of the amount of energy transferred from one object to another when an object moves against an opposing force or the speed of an object increases; calculated by multiplying the force acting on an object increases; calculated by multiplying the force acting on an object by the distance the object travels
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Energy
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ability to do work
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Joules
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a derived unit of energy, work, or amount of heat
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Kinetic Energy
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energy of a moving object
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Potential Energy
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energy that is stored and held in readiness; energy that has the potential to do work; types of potential energy include gravitational, elastic, and chemical
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Gravitational Potential Energy
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energy of an object because of it's position above the surface of Earth
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Chemical Energy
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potential energy stored in the chemical bonds of compounds
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Electrical Energy
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work done by moving charges; energy produced by moving electrons
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First Law of Thermodynamics
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the total energy, including heat, in a system and it's surroundings remains constant
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Second Law of Thermodynamics
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heat always flows naturally from a hot object to a cold object, never naturally from a cold object to a hot object
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Efficiency
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ratio of the useful work output to the total work input; measurement of how effectively a machine converts energy input into useful energy output
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Heat of Fusion
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the amount of energy absorbed when 1 mol of a substance in the liquid phase changes to the solid phase, without a change in temperature
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Heat of Vaporization
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the amount of energy absorbed when 1 mol of a substance changes from vapour phase to gas phase, without a change in temperature
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Heat of Solidification
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the amount of energy released when 1 mol of a substance in the liquid phase changes to the solid phase, without a change in temperature
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Specific Heat Capacity
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amount of energy required to raise the temperature of 1 g of a substance by 1°C
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