Measuring Mass

1. Measuring Mass • Mass is the amount of matter in an object • Matter is some thing that has mass and takes up space

2. Mass is measured in grams and kilograms 1 paper clip =1 gram 1000g = 1kg Average human adult is 75 k Units for measuring mass =

3. Tools for measuring Mass • The triple beam balance

4. How to use a triple beam balance • 1) Make sure that the balance scale is at zero. • 2) Place object on balance scale the larges and move the largest rider one notch at a time until the beam drops. Move the rider back one notch (make sure it lock in place) • 3) Move the next largest rider until the beam drops. Back it up one notch. • 4) Move the smallest rider until the beam swings equally above and below the zero mark. • 5) Add up all the numbers to find the mass!

5. Calculate The Mass

6. Mass Vs Weight Weight depends on gravity Weight equals Mass X gravity The weight of an object changes if the pull of gravity changes Mass does not depend on gravity The mass of an object always remains the same

7. Outer Space Outer Space The astronaut travled to the moon what can you tell me about his mass and wieght on the moon compared to earth