Mass and Weight Science Olympiad Div B Study

1. MASS AND
WEIGHT

2. DEFINITIONS
Mass- the amount of matter an object has.
Matter- something that has mass and takes
up space.
Weight- is the amount of mass of an object,
it is dependent upon gravity.

3. Units for Measuring Mass
⮚Mass is measured in grams and
kilograms.
⮚1 paper clip= 1 gram
⮚1000g=1 kilogram
⮚The average human adult weighs 75kg.

4. Tools for Measuring Mass
**The Triple Beam Balance is the tool we
use to measure mass.

5. How to use a Triple Beam
Balance
1. Make sure the balance scale is at zero.
2.Place the object to be weighed on the balance
plate and move the largest RIDER one notch
at a time until the beam drops. Move the rider
back one notch until it locks into place.

6. 3. Move the next largest rider until the
beam drops. Back it up one notch, and
lock it in place.
4. Move the smallest rider until the beam
swings equally above and below the zero
mark.

7. • ADD UP ALL THE NUMBERS AND
THAT WILL GIVE YOU THE MASS!
**Always remember to write the unit
of mass down. (ex.- kg, g)**

8. COMPARE AND CONTRAST
MASS vs. WEIGHT
▪ Always remains constant Depends on gravity
▪ Does not depend on gravity weight=mass x gravity
weight of an object
changes if the gravity
changes

9. THE END