1. Mass
Notes

2. What is “mass”?

3. 1. Mass The amount of matter in an object
Mass stays the same regardless of location
Mass is measured with a triple beam balance or a double pan balance
Basic unit of measurement is the gram (g)
1 gram (g) = 1000 milligrams (mg)
1kilogram (Kg)= 1000 grams (g)
(*mass is NOT weight)

5. Double Pan Balance

6. 2. Weight The measure of the pull of gravity on an object
Varies / changes depending on location
measured with a spring scale
Basic unit of measure is Newtons (N)
weight = (mass x gravity)

7. 3. Gravity The force of attraction between two objects
Gravity is determined by the objects mass
Ex: big mass = strong gravity
The sun has more mass, and more gravitational pull than Earth
small mass = weaker gravity
The moon has less mass and less gravitational pull than Earth