sound review sheets
Tuesday, February 15, 2011
Monday, February 7, 2011
Sound Unit
Goals
1. Explain what a wave is.
2. Differentiate between longitudinal and transverse waves
3. Correctly use the vocabulary: medium, pulse, crest, trough, compression, and rarefaction.
4. Define and apply the following wave characteristics: period, frequency, velocity, wavelength, amplitude, and energy.
5. Apply the following relationships: T=1/f and v =f*wavelength.
6. Explain how standing waves are produced and correctly use the terms nodes and antinodes.
7. Explain the following wave behaviors, interference, beats, resonance, doppler effect and sonic booms.
Key dates:
Online Homework : due monday evening 2/14
Speed of sound lab : performed 2/10. due: negotiable, but probably 2/18
Test 2/19. Class 2/18 will not be a review day, but instead a lab day for the next unit.
1. Explain what a wave is.
2. Differentiate between longitudinal and transverse waves
3. Correctly use the vocabulary: medium, pulse, crest, trough, compression, and rarefaction.
4. Define and apply the following wave characteristics: period, frequency, velocity, wavelength, amplitude, and energy.
5. Apply the following relationships: T=1/f and v =f*wavelength.
6. Explain how standing waves are produced and correctly use the terms nodes and antinodes.
7. Explain the following wave behaviors, interference, beats, resonance, doppler effect and sonic booms.
Key dates:
Online Homework : due monday evening 2/14
Speed of sound lab : performed 2/10. due: negotiable, but probably 2/18
Test 2/19. Class 2/18 will not be a review day, but instead a lab day for the next unit.
Wednesday, January 19, 2011
Summer Science Internships
This is a great opportunity to do interesting work over the summer, get paid, see real science being done, prepare a science fair project, and/or build a diverse college application.
No seniors unfortunately.
I really encourage you to look into it.
Application deadline is Jan 21.
http://www.saturdayacademy.org/ASE/GeneralInformation/tabid/224/Default.aspx
No seniors unfortunately.
I really encourage you to look into it.
Application deadline is Jan 21.
http://www.saturdayacademy.org/ASE/GeneralInformation/tabid/224/Default.aspx
Tuesday, January 18, 2011
customized problem set
UT Quest has a new service that builds a set of questions for you to use to review. Every question that you missed the first time is rewritten with new numbers so that you can try again.
Log in and then use the instructions in the link below to make your personal set.
http://web4.cns.utexas.edu/quest/support/student/customreview.pdf
Log in and then use the instructions in the link below to make your personal set.
http://web4.cns.utexas.edu/quest/support/student/customreview.pdf
Tuesday, January 4, 2011
Unit 5: Momentum, Energy and Conservation Laws.
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.
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.
Tuesday, December 14, 2010
Sunday, December 12, 2010
Hints on current homework
In the question about the car stopping: Vf=Om/s. You can use vf^2=vi^2+2aΔx to get x, the stopping distance. To get a use the frictional force Ff = µFN. You’ll have to decide which µ works better.
For the box on the slope: amazingly you can do it even though you don’t know the mass of the box. The mass will cancel out everywhere. Start with ma = Fnet = Fparallel-Ff. (FN = Fperp.) If you substitute in correctly, you can get mass to cancel.
Sorry about the lack of subscripts and superscripts here. Did you see the extra credit assignment.
For the box on the slope: amazingly you can do it even though you don’t know the mass of the box. The mass will cancel out everywhere. Start with ma = Fnet = Fparallel-Ff. (FN = Fperp.) If you substitute in correctly, you can get mass to cancel.
Sorry about the lack of subscripts and superscripts here. Did you see the extra credit assignment.
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