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What is the definition of Absolute Zero?
Absolute Zero= lowest possible temperature, at which thermal energy is as close to zero as it can be, approximately -273ºC.
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How many significant figures are there in this number: 20,080?
4 Significant zeros. Zeros after the last number, do not count!
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What Is Scientific Notation form?
a×10b
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What are the three types of graphs are useful for scientific data analysis? Hint: what three types of graphs have we learned about?
Bar graphs, Circle graphs, Line graphs
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What is the definition of Archimedes' Principle?
Archimedes' Principle= states that the buoyant force is equal to the weight of the fluid displaced by an object.
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What is the definition of null hypothesis?
Null hypothesis= there is not a relationship between what was expected and what was observed
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The specific heat of steel is 470 J/kg/℃. Calculate the amount of heat required to raise the temperature of a 2kg steel block by 100℃.
Thermal Energy= mass x temp x specific heat Thermal Energy= (2kg)x(100℃)x(470 J/kg/℃)= 94000J
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Convert 250mg to g Remember: 1g=1000mg
250mg x 1g/1000mg = 0.25g
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What is the definition of density?
Density= mass/volume
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What is the experimental group?
Experimental group= the group you are testing
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Convert: Cupcakes are baked at 30 degree Celsius. What is this value in FAHRENHEIT?
1. F=9/5℃+32 2. F=9/5(30℃)+32= 86F
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How many significant figures are there in this number: 2000?
1 significant figure.
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