**Materials:** Various masses or objects. Spring scale

1. Find out the weight of each of the masses using a spring scale.

Mass (grams) | Weight (Newtons) | |

Test 1 | ||

Test 2 | ||

Test 3 | ||

Test 4 | ||

Test 5 | ||

Test 6 | ||

Test 7 | ||

Test 8 |

2. Graph the mass vs the weight (in newtons)

Calculations:

3. Calculate the slope of the line of your graph

4. Use your graph to determine the weight (newtons) of each of the following masses.

5g ____________ 25g _____________ 45g _____________

5. Develop a formula that you could use to convert mass to weight. Alternately, explain how you would convert an object's mass to its weight.