Monday 11/16

Prelude: Free body diagram

Objective: a force requires a change in velocity or acceleration.

Notes on work:

Work= force* distance

Work is the change in energy of something.

Work = change in kinetic energy.

Kinetic energy: Energy of motion. Equation = 1/2mv²

Potential energy: energy of position

PE = mgh

Potential energy: a bow, an object elevated. Something that has a force acting on it but no work.

Introduce lab. Students will drop balls first and then measure the mass of their ball. 3 balls per group if possible. Two timers per group if possible.

HW: Blue handout: page 32 and 37.