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WorksheetsBasics of Vibrations
Total questions: 30
Worksheet time: 24mins
Potential Energy is often described as _________ energy.
moving
stored
static
radiant
Kinetic Energy is often described as __________ energy.
oscillating
stored
static
moving
The number of waves that pass a fixed point in a given amount of time is the ---.
frequency
speed
period
wavelength
The amount of time it takes for one full cycle of a wave to repeat is the ---.
frequency
speed
amplitude
period
The distance between repetitions in a wave is the ---.
frequency
wave speed
amplitude
wavelength
What is the amplitude of the wave?
3 m
27 m
8 m
4 m
What is the wavelength of the wave?
3 m
27 m
35 m
13 m
A spring vibrates 50 times in 2 seconds, so the frequency of the spring's vibration is ...
10 Hz
15 Hz
20 Hz
25 Hz
Is spring a force?
Yes
No
A spring reaches its 'elastic limit' when a spring is compressed lightly.
True
False
When a spring is being stretched the internal forces of the spring do not help the spring to go back to its original shape.
True
False
Are springs elastic?
Yes
No
We measure force in
newons
netons
newrons
newtons
An elastic band is similar to a spring.
True
False
When comparing spring A to B,
A has a larger spring constant than B so A is a stiffer spring
B has a larger spring constant than A so A is a stiffer spring
A has a larger spring constant than B so B is a stiffer spring
B has a larger spring constant than A so B is a stiffer spring
A spring with constant k is elongated from equilibrium by a distance x.
If it were stretched to a distance of 2x, by how would the energy stored in the spring change?
PEs would become quartered
PEs would become half of the original
PEs would increase by 2
PEs would increase by 4
What quantity can you calculate from the graph and give the magnitude of that quantity.
distance 4.5 m
Force 15 N
spring constant 20 N/m
spring constant 200 N/m
Spring constant is measured in
N
J
m
N/m
What does the spring constant mean?
What type of spring you are dealing with
How long the spring will stretch or compress
It gives you a value on how easy or hard it is to change the objects length.
A spring constant gives you a number which tells you what material the spring is made of.
Which of the following is a true statement regarding springs?
Springs are designed to provide unpredictable variations in force.
In Hooke's law, the force exerted by the spring acts in the same direction as displacement.
The higher the value of the spring constant, the stiffer the spring.
The force exerted by a spring has a quadratic relationship with the displacement form equilibrium.
A 0.5 kg sphere is placed on top of a compressed with 30 J of elastic potential energy ideal spring. When the spring is released, the sphere moves upward. Neglecting friction, how high does the sphere rise?
1.5 m
5.0 m
6.0 m
60. m
Which quantity can be determined from this graph?
the net force is 4N
the spring is 0.4m long
the stored potential energy in this spring is 1.6 J
the spring constant is 10 N/m
At what point is the kinetic energy of the system maximized?
B
O
C
before the hand did work
As the hand pulls down on the mass, the spring constant _______, assuming that it doesn't pass the elastic limit of the spring.
increases
decreases
remains roughly constant
needs more information
A spring with constant k is elongated from equilibrium by a distance x. If it were stretched to a distance of 2x, how would the spring force change?
F would decrease by 1/2
F would increase to twice as large
F would remain the same
