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SHM A-Level Physics Flashcards | StudBud
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SHM A-Level Physics
SHM A-Level Physics
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Questions
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Answers
1
An object in simple harmonic motion has the greatest potential energy at:
either endpoint
the equiliibrium point
multiple points throughout the oscillation
a point in between an endpoint and the equilibrium point
2
An object undergoes Simple Harmonic Motion if:
F = -kx
the word Oscilator is in the name
F = k2x
F = kx
3
Resonance frequency is the same as natural frequency?
True
False
4
SHM... calculator ready?
A
D
C
B
5
State Hookes Law
Current meeting at a point adds together
Force needed to compress a spring proportional to distance
Force to extend a spring is proportional to distance
Any force on a material causes a deformation
6
True or false? Resonance happens when driving frequency equals natural frequency.
False
True
7
When there is heavy damping
the amplitude of oscillations is gradually reduced
The system continues to oscillate with the same time period
The system returns to equilibrium in the shortest time
no oscillating motion occurs
8
What happens to the Amplitude-Driving Frequency graph as you increase damping?
Maximum amplitude occurs at a higher frequency
Graph becomes taller and pointier
Graph remains the same
Maximum amplitude occurs at a lower frequency
9
another definition of SHM
acceleration is in the opposite direction to the displacement
acceleration is in the same direction to the displacement
acceleration is proportional to the displacement
acceleration is inversley proportional to the displacement
10
A damping force has a direction...
Opposite to the velocity
Proportional to the displacement
Same as the displacement
Same as the acceleration
11
Which one of these statements about the energy in SHM is NOT correct?
potential energy is 0 when the particle is at rest position.
There is constant interchange between KE and PE
kinetic energy is maximum when displacement is maximum.
The total energy is the sum of the PE and KE
12
What class of damping does this graph show?
Extreme damping
Super damping
Critical damping
Over damping
13
Simple Harmonic Oscillations
C
D
A
B
14
What class of damping does this graph show?
Critical damping
Extreme damping
Under damping
Over damping
15
A damping force has a direction...
Opposite to the velocity
Same as the acceleration
Same as the displacement
Proportional to the displacement
16
An object in SHM on a spring has max velocity at this point...
maximum displacement
the top
Equilibrium position
maximum distance
17
Where was chocolate invented?
Belgium
Mexico
Italy
Switzerland
18
Which is NOT an example of simple harmonic motion?
Kevin
A spring oscillating vertically
A ball rotating on a string
A pendulum swinging through a small angle
19
Simple Harmonic Oscillation graphs?
A
D
C
B
20
A condition for SHM is...
Restoring force proportional to distance
retarding force limits motion
Restoring force inversely proportional to displacement
a trip to Cornwall
21
What is an example of mechanical resonance?
Musical Instruments
Quartz crystals in clocks
Wine glass breaking when someone sings
Bus engine vibrating the panels
22
Who are the biggest consumers of Easter Eggs in the world?
Britains
Australians
Canadians
Americans
23
Simple Harmonic Motion can be modeled using
sinusoidal functions
Coloumb's Law
Euclidean geometry
differential equations
24
Which graph best shows the lightest damping?
C
A
B
D
25
For an object in SHM, at equilibrium. position, it has:
attitude
zero velocity
Maximum acceleration
Zero acceleration
26
For an object in SHM, at equilibrium. position, it has:
All energy is stored as potential energy
Maximum speed
Zero speed
27
What is Natural Frequency?
frequency at which an object implodes
frequency that an object oscilates if no force aacting on
frequency that occurs naturally
frequency at which an object duplicates its harmonic motion
28
Who discovered resonance?
Joseph Priestley
Carys
Galileo Galilei
Kevin
29
What is damping?
Restraining of vibratory motion
When energy decreases, the amplitude decreases
getting wet
When energy increases, the amplitude increases
30
Simple Harmonic Oscillations
B
A
D
C
31
Energy in SHM, which graph is correct?
A
D
C
B
32
This question is about damping.
The curve would be lower at all frequencies.
The curve would be higher at all frequencies.
No change to curve before resonant frequency, then lower.
No change to curve before resonant frequency, then higher.
33
What is Simple Harmonic Motion (SHM)?
Object oscillates, constant time period, amplitude decreases
Object oscillates, time period increases, amplitude increase
Object oscillates, changing time period, amplitude varies.
Object oscillates, constant time period, amplitude can vary
34
Which of the statements always applies to a damping force acting on a vibrating system?
It is in the same direction as the acceleration
It is in the same direction as the displacement
It is in the opposite direction to the velocity.
It is proportional to the displacement.
35
What is resonance?
driving frequency = natural frequency, big vibrations
fundamental frequency directly proportional to amplitude
Big vibrations with high frequency = high amplitude waves
natural frequency = displacement + amplitude
