Ch. 6 & 7: Energy & Momentum

Homework:

Thursday, 11/14

Chapter 6

Questions: 2, 3, 9, 10, 11

Problems: 2, 3, 7, 15, 16, 17, 20, 21, 33, 35, 38, 40

Friday, 11/22

Chapter 6

Questions: 14, 19, 21

Problems: 48, 49, 58, 60, 65, 74, 80, 81, 83

Chapter 7

Questions: 1, 2, 3, 4, 5, 7

Problems: 3, 4, 7, 8, 15, 17

Thursday, 12/5

Chapter 7

Questions: 10, 13, 18

Problems: 23, 24, 34, 35, 41, 65, 70, 71, 73

Unit Objectives:

By the end of this unit, you will be able to:

- Identify types of energy present in an object in various circumstances

- Use conservation of energy to solve motion problems

- Differentiate between work, energy, and power; solve problems involving all

- Solve problems using impulse and momentum

- Use conservation of momentum and conservation of energy to solve inelastic and elastic collision problems

Over the course of this unit, you will:

- Predict where a projectile will land by measuring its starting conditions (position only)

- Measure your own power

- Calculate the effect of the world population gathering in Castro Valley and simultaneously jumping into the air

- Finally understand how a Newton’s Cradle works

Prerequisite skills: Understanding of position and velocity; mathematical reasoning; adding vectors; experience predicting the motion of objects; solving problems using Newton’s Laws

Energy and Momentum Test Friday, 12/6