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Oscillating Systems
Oscillating Systems
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Understand the difference between free and forced oscillations
Flashcards
15 cards
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Questions
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Answers
1
What is an example of mechanical resonance?
Musical Instruments
Wine glass breaking when someone sings
Quartz crystals in clocks
Bus engine vibrating the panels
2
What happens to the Amplitude-Driving Frequency graph as you increase damping?
Graph remains the same
Graph becomes taller and pointier
Maximum amplitude occurs at a lower frequency
Maximum amplitude occurs at a higher frequency
3
What quantity stays constant for oscillations?
Amplitude
Time Period
Acceleration
Displacement
4
In this spring-mass diagram, what acts as a damper?
Mass
Circular Card
Spring
Air Resistance
5
What else happens to the graph when damping increased?
The graph remains the same
The peak on the graph becomes flatter and broader
f0 decreases
The amplitude of the vibration at any frequency decreases
6
Who discovered resonance?
John Dalton
Galileo Galilei
Joseph Priestley
Linus Pauling
7
A pendulum is set into motion (No external forces). What type of oscillation is this?
Forced Oscillation
Free Oscillation
8
What is the forced oscillator in the picture?
Lisa swinging
Lisa, the ropes and the swing
Homer pushing
The swing and the ropes
9
What does MRI, stand for ?
Mechanical Resonance Imaging
Magnetic Resonance Imaging
Magnetic Resolution Imaging
Memory Resolution Imaging
10
In a microwave, what is the source of the driving frequency?
The food
The electricity
The magnetron
The heat
11
Resonance frequency is the same as natural frequency?
False
True
12
Which of these kitchen appliances work, using resonance?
Microwave
Dish Washer
Fridge
Oven
13
In a car, which of these contribute to damping?
Anti Roll Bar
Tyres
Axial
Suspension
14
In an MRI scanner, what is the forced oscillator?
The muscles
The hydrogen nuclei
The tissue
The water molecues
15
In a microwave, what is the forced oscillator?
The food
The plate
The air
The water molecules
