Demonstrations: Thermal E, Final exam essay topics

Today we had several demonstrations involving Thermal E and HEAT.

Final exam essay topics released on paper in class today:

1. Explain an object’s motion (a car speeding up, a baseball being thrown) verbally in terms of what happens to the object, mathematically or visually with numbers, and graphically, relating velocity, position, or acceleration.

 2. When given a scenario, explain an object’s motion as the result of a set of forces acting on it.  Explain how net force determines the direction and magnitude of acceleration.

 3. Explain inertia, and relate it to a scenario.  (riding in a car going around a corner, a roller coaster, or a car accident)

 4. Explain how friction works, and the effect of changing: surface type, surface area, weight, or angle of surface may affect it.

 5. Verbally and mathematically, relate energy to work done on an object, either through showing work ~ GPE when work is done to lift something, or work ~ KE when work is done to speed up or slow down something. 

 6. Using information about net force and mass, determine the effect on an object’s acceleration.

 7. Describe the relationships between input work, output work, efficiency, time, and power, and relate them to a scenario given.

 8. Explain heat, why it happens, and different mechanisms for heat.  Relate specific heat or conductivity to a given scenario to explain it.

 9. Explain how a machine alters the type of work done, not the amount, and diagram an example to explain visually and mathematically.

 10. Analyze the energy involving a specific system; where the energy is from, where it ultimately goes, and the forces/ processes involved in changing/converting energy in the context of its conservation, for small or universal systems.