4.1 Simple Harmonic Motion Flashcards
1
Q
What is the definition of simple harmonic motion?
A
A displacement from the equilibrium fives rise to a restoring force and therefore an acceleration which is PROPORTIONAL to and in the OPPOSITE DIRECTION to the displacement from the equilibrium.
2
Q
How can the conditions for simple harmonic motion be written mathematically?
A
a = -kx
3
Q
Wha is the graph of acceleration versus displacement like for simple harmonic motion?
A
Straight line through the origin with a negative gradient.
4
Q
What are the energy changes in simple harmonic motion?
A
Two types of energy transomed into one another - kinetic and potential energy. For a pendulum at extremes has maximum potential energy, at origin has maximum kinetic energy, in between has both.
