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The number of sunspots on the sun varies over a period of 10 or 11 years. Some scientists have hypothesized that short-term changes in climate on Earth may be related to sunspot cycles. Satellites have recently collected data that show that the amount of energy the sun produces changes slightly from year to year. Some scientists think that these increases and decreases, which may be linked to the number of sunspots, may cause changes in Earth's temperature.
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Why are line graphs a powerful tool in science?
Line graphs show a change over time and if you're doing an experiment over a certain number of days or any length of time, line graphs can be used to track your progress and the change of the experiment.
What is the difference of accelaration and decelaration?
Acceleration is an increase in change in speed over time of an object, and deceleration is a decrease in the change in speed over time of an object. -aerol-
What is a constant input?
An input that does not change over time.
How do you turn a number into a growth or decay percentage?
One number cannot be turned into a growth or decay percentage - unless it is already a growth or decay percentage. You need three items of information: a level (either before or after the change), the value or relative value of change and a time interval over which the change occurs.
What does a triangle symbol in front of a number mean?
The triangle is called delta. It means change. For example, a variable x might change over time. At the beginning of time, x would be x0, at some other point in time x might be xh. The distance between x0 and xh would be ∆x (delta x, or the change in x)
