HIGH SCHOOL PHYSICS 2 COURSE. ( SPH 3U1/SPH 4A1)
updated: March 2007

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## Unit 2: Momentum and Energy

All moving objects have momentum and energy. These two quantities have the priceless property of being conserved. Examining these quantities gives us more tools to analyse how objects move and interact with other objects. This is fundamental to the study of collisions, gases, and astronomical phenomena.

Unit Objectives

 Lesson Topic Textbook pages & other resources Homework (Giancoli) 1. Momentum, Conservation of momentum 2. Conservation of momentum in two dimensions 3. Perfectly elastic and inelastic collisions (special formulas) Collisions in more detail 4. Impulse 5. Momentum "lab" omit?? based on time. or leave for end of course 6. Work Review of kinetic and gravitational energy Calculus of force and energy 7. Hooke's Law, Elastic Energy Conservation of Energy Extra:vertical springs (ppt) 8. Simple Harmonic Motion hints and solved problems 9. LAB: SHM - verifying the frequency equation, (also see if freq. is a function of amplitude) Foucault's Pendulum: Proof that the earth rotates 10. Review 11. Unit Test

Unit Objectives

 By the end of this unit the student will be able to: solve collision problems using conservation of momentum, in 1 and 2 dimensions define and use impulse in problems (impulse is a minor topic) define elastic collision determine the percent of kinetic energy lost in inelastic collisions use special formulas for elastic collisions in one dimension use Hooke’s law to find the spring constant use kinetic energy, gravitational potential energy, elastic potential energy and the conservation of energy to solve problems (springs, oscillators, ...) write the equations for x, v, and a for a simple harmonic oscillator find the frequency and period of oscillators

### Assignments:

Sources:

• Most of the information in this unit was originally from ... (textbooks)

Last updated: Mar 2007