Run the simulation a few times, change objects, forces,etc...
USe YOUR OWN WORDS and a complete sentence to describe what acceleration is
Use YOUR OWN WORDS and a complete sentence explain why you answered #3 the way you did. Start your answer like this - "I answered #3 with a ___ because"
What is NEGATIVE ACCELERATION?
Does the amount of FRICTION affect how much force is required to change the ACCELERATION of an object?