Physics Chapter 13 : Oscillations
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/14
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
15 Terms
What are the two conditions required for an object to oscillate with SHM?
The restoring force is directly proportional to the displacement.
The restoring force always acts towards the equilibrium position.
What is angular frequency?
Angular frequency is a measure of the rate of rotation of an object.
Give two equations for angular frequency.
ω = 2π/T
ω = 2πf
What are the two types of oscillations that an object can experience?
Free oscillations
Forced oscillations
What is the frequency of a freely oscillating object equal to?
Freely oscillating objects will vibrate at their natural frequency.
What is resonance?
Resonance is where the amplitude of oscillations of an object drastically increase due to gaining an increased amount of energy from the driving force.
This occurs when the driving frequency equals the natural frequency of the object.
What can be said about an object undergoing resonance?
The object will be oscillating at its maximum amplitude and the rate of energy transfer is at a maximum.
What is damping?
Damping occurs when energy is lost from an oscillating system due to an external force acting on it.
What are the three types of damping?
Light Damping
Critical Damping
Heavy Damping
What is critical damping?
Critical damping is when the damping causes the object to return to the equilibrium position in the quickest time possible without oscillating.
State the equation for the total energy stored in a simple harmonic oscillator.
Energy stored = ½ kA²
Where k is the spring constant, and A is the amplitude.
If the following graph shows displacement against time, what would the velocity-time graph look like?
If the following graph shows displacement against time, what would the acceleration-time graph look like?
What is the difference between free and forced oscillations?
When an object oscillates without any external forces being applied, it oscillates at its natural frequency. This is known as free oscillation. Forced oscillation occurs when a periodic driving force is applied to an object, which causes it to oscillate at a particular frequency.
How can time period be calculated for a mass-spring system and a pendulum respectively?
