Change mass, parachute size, height
http://www.physicsclassroom.com/Physics-Interactives/Newtons-Laws/Skydiving
Change mass, parachute size, height
http://www.physicsclassroom.com/Physics-Interactives/Newtons-Laws/Skydiving
Change liquid, g, densities, see change in weight on graph
http://www.thephysicsaviary.com/Physics/Programs/Labs/ForceBuoyancy/index.html
Play with densities, see forces
https://phet.colorado.edu/sims/density-and-buoyancy/buoyancy_en.html
Put block in a liquid, see change in weight
Change densities, see FBD of moving object
Continuity
Change heifht of release of cart, measure stopping distance
http://www.physicsclassroom.com/Physics-Interactives/Work-and-Energy/Stopping-Distance
Change incline, see force to pull up cart to same height
http://www.physicsclassroom.com/Physics-Interactives/Work-and-Energy/Its-All-Uphill
Goalless problem – dry ice puck hitting spring
https://app.pivotinteractives.com/activities/594d6716df600500116459ef/preview