The simple pendulum Flashcards
How do we define the period of an oscillation of a spring-mass system?
Tmass = 2 pi.(√(m/k)) , Where k is the spring constant.
What is Hooke’s law?
|Fs| = k|x| , where Fs is spring force, k is the spring constant, and x is the magnitude displacement
What is an equilibrium position?
The point at which there’s no net force on the object that’s oscillating
What is amplitude
Amplitude is the maximum magnitude of the displacement of mass from its equilibrium, also represented by “A”.
What does the formula for spring-mass system state?
The period of a spring-mass system is proportional to the Square root of the mass, and indirectly proportional to the square root of the spring constant.
How to represent an oscillation on a graph?
Place the displacement on the y-axis, and time on the x-axis.
What is period?
Period is the time required for an entire cycle, or in other words, the time a system take to reset to the same position.
What is the difference between angular velocity and angular speed?
Angular velocity involves direction, while angular speed does not, since the speed can’t be negative.
What formula can we use to describe the motion of a simple pendulum?
ϑ(t) = A.cos( 2pi.f.t) , where ϑ is theta, the magnitude of the angle, A is the maximum angular displacement form the equilibrium.
How is period represented on the graph?
The distance from peak to peak, from valley to valley, or from a point to an analogous point on the graph.
What are simple harmonic oscillators( SHO)?
Oscillatory motion where the net force on the system is a restoring force.
How do we define angular velocity or angular frequency?
w = delta theta/ delta time , where “w” is angular velocity (vector quantity), “delta theta” is the change in angular displacement (in rads), and”delta time” is the change in time.
What formula can we use to calculate the period of simple pendulum?
T = 2pi. √(L/g) , where L is the length, G is the gravitational acceleration.
What is moment of inertia?
A quantity that determines the torque needed for a desired angular acceleration about a rotational axis
How do we define torque?
The product of the force and the perpendicular distance from the line of action of the force to the axis of rotation.
