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5 Cards in this Set
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Solar Eclipse an eclipse in which the sun is obscured by the moon. |
Lunar Eclipse an eclipse in which the moon appears darkened as it passes into the earth's shadow. |
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Gravity the force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. |
Mass a coherent, typically large body of matter with no definite shape. |
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Weight a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing. |
Spring Scale A spring scale or spring balance is a type of weighing scale. |
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Triple Beam Balance The Triple Beam Balance is a typical mechanical balance. |
Independent Variable a variable (often denoted by x ) whose variation does not depend on that of another. |
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Dependent contingent on or determined by. |
Controlled Variable The number of dependent variables in an experiment varies, but there is often more than one. |
