Group Two. Will a Pepsi Float in Water? Will a Diet Pepsi Float in Water?

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Presentation transcript:

Group Two

Will a Pepsi Float in Water?

Will a Diet Pepsi Float in Water?

Putting out Candle w/ Dense Gas

Mass measured in grams (g) A triple beam balance or electronic scale 1 Kg= 2.20 pounds (lbs) Nickel weighs 5 grams How many kg does one student weigh?

Volume Volume is like a kid jumping into a pool: the water-level rises Volume is the amount of space something takes up

Volume is measured in Liters Read the bottom of the meniscus “curve” Volume is taken in graduated cylinders (like this one) morrisonlabs.com

Volume

Measure Volume Solids cm³ Liquids mL

Density Density = (mass/volume) What are the units of density?

I Density Density = m /v

Density Having less density than the water keeps this boat afloat Why does a life jacket prevent you from drowning? geekologie.com

Percent Error Percent error is a way of comparing the observed value to the accepted value

Formula for Percent Error

Percent Error Students observed a density to be The accepted value is

Example

Negative Sign? Percent Error = -6.17% The negative sign does not mean that the error was less than zero

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