Chapter 12 Concept Review Each table will work as a team to earn points by answering questions....
-
Upload
norman-cameron -
Category
Documents
-
view
216 -
download
1
Transcript of Chapter 12 Concept Review Each table will work as a team to earn points by answering questions....
Chapter 12 Concept Review
• Each table will work as a team to earn points by answering questions.
• There will be approximately 60 seconds to answer each question from the time I am done reading unless otherwise noted.
• Answers will be recorded and presented on the whiteboards at each team table.
• Correct answers will earn the points denoted by the question. Incorrect answers will not be penalized.
• The choice of category and question will rotate among teams. • At Final Jeopardy, each time may wager all of their earned
points, or $500, whichever is greater.• The winning team will earn 2 points of extra credit each on
tomorrow’s test.
Strategy
• Work together with your team.
• Talk quietly but discuss possible options. Make sure to write down your solution before time runs out.
• After each question and answer we will have time to discuss and answer questions.
JeopardySimple Harmonic Motion
Measuring SHM
Properties of Waves
Wave Interactions Potpourri
Q $100
Q $200
Q $300
Q $400
Q $500
Q $100 Q $100Q $100 Q $100
Q $200 Q $200 Q $200 Q $200
Q $300 Q $300 Q $300 Q $300
Q $400 Q $400 Q $400 Q $400
Q $500 Q $500 Q $500 Q $500
Final Jeopardy
$100 Question from Simple Harmonic Motion
• Objects that behave according to Hooke’s Law have a restoring force that is proportional to their ______________.
$100 Answer from Simple Harmonic Motion
• Displacement
$200 Question from Simple Harmonic Motion
• Objects will continue oscillating in simple harmonic motion indefinitely, trading potential and kinetic energy back and forth, as long as we ignore the effects of _______.
$200 Answer from Simple Harmonic Motion
• Friction!
$300 Question from Simple Harmonic Motion
• A pendulum oscillates in simple harmonic motion as long as its amplitude does not exceed what angle measure?
$300 Answer from Simple Harmonic Motion
• 15 degrees
$400 Question from Simple Harmonic Motion
• Hooke’s Law is expressed as F = -kx. The negative sign is there because…?
$400 Answer from Simple Harmonic Motion
• The restoring force is opposite the direction of displacement.
$500 Question from Simple Harmonic Motion
• Objects oscillating in simple harmonic motion have a maximum velocity at what point?
$500 Answer from Simple Harmonic Motion
• Equilibrium (the middle!)
$100 Question from Measuring Simple Harmonic Motion
• _________ is a measure of the time it takes for an object to complete a full cycle (one complete back-and-forth motion). The units of this measure are __________.
• (must answer both parts correctly)
$100 Answer from Measuring Simple Harmonic Motion
• Period
• Measured in seconds
$200 Question from Measuring Simple Harmonic Motion
• The period of a pendulum depends on its ________.
$200 Answer from Measuring Simple Harmonic Motion
• Length
$300 Question from Measuring Simple Harmonic Motion
• The period of oscillation of a mass-spring system depends on which two quantities?
$300 Answer from Measuring Simple Harmonic Motion
• Mass of the object
• Spring constant
$400 Question from Measuring Simple Harmonic Motion
• If the period of an object’s oscillation is tripled, what happens to the frequency? Be specific.
$400 Answer from Measuring Simple Harmonic Motion
• The frequency is reduced to 1/3 of its initial value.
$500 Question from Measuring Simple Harmonic Motion
• If the mass in a mass-spring system is doubled, and the spring constant is also doubled, what happens to the frequency? Be specific.
$500 Answer from Measuring Simple Harmonic Motion
• No change. The increases will cancel out.
$100 Question from Properties of Waves
• The difference between mechanical waves and non-mechanical waves is that mechanical waves need _________________________.
$100 Answer from Properties of Waves
• A medium to travel through.
DAILY DOUBLE
• Write your wagers on your whiteboards! You may risk up to all of your points or 1,000, whichever is greater.
Daily Double from Properties of Waves
• A single, non-periodic disturbance sent through a substance is called a ___________.
Daily Double Answer from Properties of Waves
• Pulse wave
$300 Question from Properties of Waves
• If the frequency of vibration of a medium is increased, what happens to the wavelength?
$300 Answer from Properties of Waves
• Wavelength is decreased. They are inversely proportional to each other.
$400 Question from Properties of Waves
• Waves are particularly efficient, because although they do not transfer matter from one place to another, they do transfer _________.
$400 Answer from Properties of Waves
• Energy
$500 Question from Properties of Waves
• A spring being stretched and compressed repeatedly is an example of a wave that is _________ and __________.
• (need both)
$500 Answer from Properties of Waves
• Periodic and longitudinal.
$100 Question from Wave Interactions
• When two pulse waves collide and their displacements are the same side of equilibrium, this is called ____________.
$100 Answer from Wave Interactions
• Constructive interference.
$200 Question from Wave Interactions
• A wave will be reflected and inverted if the medium through which it is traveling is attached to a _________ boundary.
$200 Answer from Wave Interactions
• Fixed.
$300 Question from Wave Interactions
• In a standing wave, the point(s) at which there is maximum displacement from equilibrium is(are) called ___________.
$300 Answer from Wave Interactions
• Antinode(s)
$400 Question from Wave Interactions
• What is the resultant displacement at a position where destructive interference is complete?
$400 Answer from Wave Interactions
• Zero
$500 Question from Wave Interactions
• A standing wave that has 4 nodes has a wavelength of what fraction of the length of the medium it is traveling through?
$500 Answer from Wave Interactions
• 2/3 of the length of the medium.
$100 Question from Potpourri
• Can two waves occupy the same place at the same time?
$100 Answer from Potpourri
• Of course. This is called interference.
$200 Question from Potpourri
• Are sound waves mechanical waves or are they non-mechanical waves?
$200 Answer from Potpourri
• Mechanical. They medium they travel through is air.
$300 Question from Potpourri
• Two tuning forks with frequencies of 256 Hz and 512 Hz are struck. Which of the sounds, if either, will move faster through the air?
$300 Answer from Potpourri
• Neither. Wave speeds are constant in a given medium. Frequency and wavelength may change, but not wave speed.
$400 Question from Potpourri
• How does a single point on a string move as a transverse wave passes by that point?
$400 Answer from Potpourri
• Up and down. No horizontal movement.
$500 Question from Potpourri
• If the period of a mass-spring system is 2 seconds, what must be done to the mass of the system to increase the period to 6 seconds?
$500 Answer from Potpourri
• Increase the mass by a factor of 9. For example, if the mass was originally 4 kg, increase it to 36 kg.
Final Jeopardy
• Grandfather clocks use pendulums to move gears and keep time. If the clock is running slow, how can you adjust the pendulum to fix the problem.
Final Jeopardy Answer
• Make the pendulum shorter. Move the bob closer to the pivot point.