Light Goals

Physics – Light Unit Goals

1) What is light?

a) Be able to describe strengths and weaknesses of the two models of light.

b) Be able to give effective examples showing the strengths of each model.

2) How light behaves

a) Colors.

i) What are primary, secondary and complementary colors.

ii) How are colors produced by dispersion, addition and subtraction of light.

b) Reflection

i) What is the law of reflection.

ii) Be able to locate images and make ray diagrams for reflection from flat mirrors.

c) Refraction

i) What is it?

ii) What is Snell’s Law

iii) How did we determine a law for refraction?

iv) Be able to solve problems and draw ray diagrams, including for complete internal reflection.

d) Lenses

i) Be able to draw ray diagrams for converging and diverging lenses.

ii) Identify images as real or virtual.

Sections in book: most of chapters 16-19

Important Dates:

3/21 Particle Model Lab due

4/5 Second Homework Set due

4/11 Fernwood Presentations

4/9 Test

Homework due Jan 4th

Follow this link to read a short section from an online physics book. http://www.physicsclassroom.com/Class/momentum/

You should read parts a, b, and c from Lesson 1: The Impulse-Momentum Change Theorem. Try answering the questions as you go.

Alternately you could read section 9.1 from the textbook (pp. 199-206)
Then do the two problems from the new assignment at the UT site. It's due at 10:00 Wednesday evening. (Jan 4)

Unit 5: Momentum, Energy and the Conservation Laws

Goals
1.Define and determine work, energy and power.
2.List a variety of types of energy and classify them as potential or kinetic.
3.Solve problems using equations for gravitational potential energy and kinetic energy.
4.State and apply the law of conservation of energy.
5.Account for energy in its various forms through a series of transformations, including energy “lost” to heat.
6.Define impulse and momentum and describe how they’re related.
7.State the law of conservation of momentum and use it to solve problems in one and two dimensions.
8.Classify collisions as completely elastic, completely inelastic or somewhere in between.

Homework Assignments are due TOMORROW Jan 4, on Thursday, January 12th, and on Wednesday January 25.

A Lab report will be due on Friday Jan 20th.

we will have two days to review for the final at the beginning of February.

Review answers 2011

Unit Four Review Solutions 2011

Unit 4: Advanced Concepts in Forces – friction, components, centripetal force, circular motion and gravity Nov. 28 – Dec. 16

Goals
• Be able to add forces in two dimensions.
• Understand and apply conditions for equilibrium.
• Calculate the frictional force when given the coefficient of friction and vice versa.
• Determine the normal force, and the parallel and perpendicular components of gravity for inclined plane problems and solve for acceleration.
• State and apply equations for centripetal acceleration and force.
• Distinguish between the centripetal force and the fictitious centrifugal force.
• Analyze examples of circular motion in terms of Newton's three laws of motion.

Important Dates
Friction Lab : due Dec. 9
Homework: Dec. 1 and Dec. 12, both at 10:00 pm
Unit Test: Dec. 15

Forces Answer Key

Forces Review Answer Key

Unit 3 Dynamics

Unit Three – Dynamics

Goals
1. Draw Force Vectors.
2. Calculate Weight.
3. Solve Problems with Net Force.
4. Know that when an object is at rest or moving with constant velocity that Fnet = 0 and all of the forces are balanced.
5. Understand what terminal velocity is and how it is reached.
6. Be able to explain why all objects in freefall have an acceleration of 9.8 m/s2
7. Understand that forces are interactions between two things and that each object exerts an equal and opposite force on the other.
8. Know Newton’s Three Laws of Motion by name.
In general, understand Newton’s 3 laws and apply them to explain motion.

Test Date: Nov. 18
Lab Due Date: Nov. 4
Homework due in the evening of Nov. 8