OSCILLATIONS

Question 1

what is an oscillation

Answer 1

repeatedly moves back and forth on either side of some fixed position, to which it returns when the oscillation ceases

Question 2

what is natural frequency

Answer 2

vibrating in free oscillation, it will vibrate at a frequency called natural frequency

Question 3

what is the total energy

Answer 3

potential + kinetic energy

Question 4

what is the equation with links, K, a, x

Answer 4

a=-kx

where acceleration is directly proportional to the negative value x. Which is the displacement from the equilibrium position.

Question 5

explain the equation a=-w^2x

Answer 5

the K constant can be written as the angular frequency (w) of the oscillations.
we can also sub in 2πf if we only have the normal frequency.

Question 6

how do you calculate velocity for a swinging body in shm

Answer 6

v=±w√(A^2 - X^2)

A is the amplitude

Question 7

what are solutions to the equation a=-w^2 x

Answer 7

X=Acoswt, X=Asinwt
we use depending on where the pendulum is
t is the time in seconds and A is the amplitude=x

Question 8

what are the characteristics of shm

Answer 8

-zero velocity at maximum displacement
-max velocity at 0 displacement
-max acceleration at max displacement
-velocity changes smoothly and symmetric on either side of the equilibrium

Question 9

what is damping

Answer 9

reducing the amplitude of an oscillation with time, due to energy being removed from the system

Question 10

what is driving frequency

Answer 10

the frequency of the driving force applied to the pendulum