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Mass

Mass. Mass and Weight. Mass – __________________________________________________________________ __________________________________________________________________ Weight – __________________________________________________________________

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Mass

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  1. Mass

  2. Mass and Weight Mass – __________________________________________________________________ __________________________________________________________________ Weight – __________________________________________________________________ __________________________________________________________________ Are Mass and Weight the Same? – __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ The amount of matter in an object. A balance measures mass. The force of gravity on an object. A scale measures weight No. Weight can change with the pull of gravity, but mass remains constant.

  3. 1 pound = 453.6 grams 1 ounce of gold = 28,349.5 milligrams 100 kilogram = 220 lb English vs. Metric Units Which is larger? A. 1 Pound or 100 Grams B. 1 Kilogram or 1 Pound C. 1 Ounce or 1000 Milligrams

  4. Kilogram Prototype A. 1 kilogram or 1500 grams B. 1200 milligrams or 1 gram C. 12 milligrams or 12 kilograms D. 4 kilograms or 4500 grams kg Metric Units cg mg g . The base unit of mass in the metric system in the kilogram and is represented by kg. Metric Units 1 Kilogram (kg) = 1000 Grams (g) 1 Gram (g) = 1000 Milligrams (mg) Click the image to watch a short video about mass. Which is larger?

  5. Once you have balanced the scale, you add up the amounts on each beam to find the total mass. What would be the mass of the object measured in the picture? _______ + ______ + _______ = ________ g Measuring Mass We will be using triple-beam balancesto find the mass of various objects. The objects are placed on the scale and then you move the weights on the beams until you get the lines on the right-side of the scale to match up. 300 70 3.4 373.4

  6. 1st – Place the film canister on the scale. 2nd – Slide the large weightto the right until the arm drops below the line. Move the rider back one groove. Make sure it “locks” into place. 3rd – Repeat this process with the topweight. When the arm moves below the line, back it up one groove. 4th – Slide the smallweight on the front beam until the linesmatch up. Measuring Mass – Triple-Beam Balance 5th – Add the amounts on each beam to find the total massto the nearest tenth of a gram.

  7. ONLINE DEMO

  8. 536.7 290.3 263.5

  9. Measuring Mass Circle the BEST metric unit for each. (1) Your mass: mg g kg (2) Amount of spices in a batch of cookies: mg g kg (3) Mass of 10 pennies: mg g kg

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