| A | B |
|---|
| controlled variables | change one thing at a time |
| variables in a pedulum system | release position, mass at the end, length of the pendulum |
| shorten the pendulum | to make a pendulum swing faster |
| variables that effecrted # of passengers | capacity of boat, arrangement of pennies, size of boat |
| number of passengers on FOSS plane | variable you would change to test effect of mass on distance |
| which angle would shoot the ball the farthest | either 30 or 40 degrees |
| things that improve accuracy of results | repeat the experiment, control all variables, use small units to record results |
| pendulum system | the string, paper clip, penny, masking tape, and pencil |
