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Health Jeopardy
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Wacky Wellness
Going Mental
ATOD say What?
By the Numbers Picture Perfect
Final Jeopardy
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©Norman Herr, 2003
Circ. Mot.-100
• ANSWER: Although it is falsely labeled a force, this is the perceived outward force felt when turning.
• QUESTION: What is centrifugal force?
Circ. Mot.- 200
• ANSWER: A planet orbiting the sun undergoes this type of circular motion.
• QUESTION: What is revolution?
Circ. Mot.- 300
• ANSWER: This is the direction that is always perpendicular to the radius.
• QUESTION: What is tangential?
Circ. Mot.- 400
• ANSWER: This is the force acting as the centripetal force when a car goes around a turn on the road.
• QUESTION: What is friction?
Circ. Mot.- 500
• ANSWER: This is the centripetal acceleration of a 3.75 kg ball on the end of 1.2 m long rope, and is traveling 6.3 m/s around in a circle.
• QUESTION: What is acent = (vtan)2/r,
which is 33.1 m/s2 ?
• ANSWER: This is what causes something to rotationally accelerate.
• QUESTION: What is torque (or, better yet, net torque)?
Rotation-100
Rotation-200
• ANSWER: This is the tangential velocity of a bug on a record-player if the bug is 0.24 m from the center and the record player is rotating at a rotational speed of 1.4 rad/sec.
• QUESTION: What is vtan = (vrot)r
which is 0.34 m/s?
Rotation-300
• ANSWER: If a wheel starts from rest and rotationally accelerates at a rate of .46 rad/sec2, this is the rotational speed after 6 sec.
• QUESTION: What is ωf = ωi + αt,
which is 2.76 rad/sec?
Rotation-400• ANSWER: If a wheel is turning at a
rotational speed of 8.4 rad/sec and slows to rest at a rotational acceleration of -0.92 rad/sec2, this is the rotational displacement the wheel will turn through before stopping.
• QUESTION: What is ωf 2 =ωi
2 + 2αθ, which is 38.4 radians?
Rotation-500• ANSWER: If a wheel starts from a
rotational speed of 8.4 rad/sec and rotationally accelerates at 0.92 rad/sec2, this is the rotational displacement the wheel will turn through in 4.7 sec.
• QUESTION: What is θ = ωi t + ½ αt2,
which is 49.6 radians?
Electricity-100
• ANSWER: This describes the direction of a force between two opposite charges.
• QUESTION: What is attracting?
Electricity-200
• ANSWER: This is how a neutrally-charged object interacts with a negatively-charged object.
• QUESTION: What is attracting?
Electricity-300
• ANSWER: The electric field around a positively-charged object will always point in this direction.
• QUESTION: What is away?
Electricity-400
• ANSWER: This is the electric force between a 20 mC charge and a -79 mC charge that are 220 m apart.
• QUESTION: What is F = kq1q2/r2 ,
which is 294 N?
Electricity-500
• ANSWER: This is the name given to any material that allows charges to freely move on/along it.
• QUESTION: What is a conductor?
Circuits-100
• ANSWER: This is the current coming out of the battery.
• QUESTION: What is V=IR,
which is I = 3 amps?
Circuits-200
• ANSWER: This is the equivalent resistance of the entire circuit.
• QUESTION:
What is series: 7 + 2 = 9 ohms?
Circuits-300
• ANSWER: This is the equivalent resistance of the entire circuit.
• QUESTION:
What is: 6 + (1/2 + 1/4)-1 = 7.3 ohms?
Circuits-400
• ANSWER: This branch, which is can be answered as either left, middle, or right; receives the least current.
• QUESTION: What is the right branch, (5-ohms resistor)?
Circuits-500
• ANSWER: This is the current coming out of the battery.
• QUESTION: What is V = IbattRequiv ,
so I = 6.2 amps?
Waves -100
• ANSWER: This is the boundary behavior of a wave when it bends due to a speed change.
• QUESTION: What is refraction?
Waves -200
• ANSWER: This term describes the distance traveled by wave during one full cycle.
• QUESTION: What is wavelength?
Waves -300
• ANSWER: This is the frequency of a 375-nm ultraviolet wave.
• QUESTION: What is c = f λ ,
which is f = 8 x 1014 Hz?
Waves -400• ANSWER: This is the frequency
observed by stationary person on the side of the road, of a police siren with an actual frequency of 450 Hz traveling towards the person at a speed of 27 m/s.
• QUESTION: What is by the Doppler Effect, 488.5 Hz?
Waves -500
• ANSWER: This type of light causes us to feel hot when laying out in the sun.
• QUESTION: What is infrared?
FINAL JEOPARDY
CATEGORY: Rotation
• ANSWER: This is the final tangential velocity of a ball on the end of a string if the string is 0.75 m long, and the it starts from rest and rotationally accelerates at a rate of 1.8 rad/sec2 for 9 seconds.
• QUESTION: What is 12.2 m/s?