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19 Cards in this Set
- Front
- Back
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What is a substance?
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Single pure form of matter
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What is a physical property?
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A characteristic that we can observe or measure without changing the identity of the substance.
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What is a chemical property?
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The ability of a substance to change into another substance.
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What is an intensive property?
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A property that is independent of the mass of the sample.
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What is an extensive property?
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A property that does depend on the mass of the sample.
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What is the equation for density?
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density = mass/volume
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What is a systematic error?
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An error present in every one of a series of repeated measurements.
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What is a random error?
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An error that varies at random and can average to zero over a series of observations.
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What is energy?
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A measure of the capactiy to do work.
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What is kinetic energy?
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The energy that a body possesses due to its motion.
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What is potential energy?
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The energy that it possesses on account of its position in a field of force.
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What is the equation for kinetic energy?
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Ek= 1/2mv^2
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What is the equation for potential energy?
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Ep = mgh
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What is total energy?
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kinetic energy + potential energy
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What is acceleration?
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The rate of change of an object's velocity.
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What is the equation for force?
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mass x acceleration = force
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What is velocity?
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the rate of change of position that has both magnitude and DIRECTION.
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What is speed?
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The rate of change of position regardless of the direction of the motion.
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What is work?
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Motion against an opposing force.
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