Part 1: Force Diagrams
Draw a force diagram for a frictionless cart moving away from the sensor at a constant speed.
Draw a force diagram for a frictionless cart moving away from the sensor at a decreasing speed. The fan is on and your hand is pushing on the cart in the opposite direction of the fan to slow it down.
Part 2: The Scientific Method
Scientists use the scientific method to ask (and sometimes even answer!) questions about the world. To help you understand a little more about the scientific method, please define the following terms in your own words. Please don’t just cut and paste from Google.
Hypothesis
Independent variable
Dependent variable
Controlled variables
Scientific consensus
Scientific Theory
