Table of Contents
What is meant by the period of a pendulum?
A simple pendulum consists of a light string tied at one end to a pivot point and attached to a mass at the other end. The period of a pendulum is the time it takes the pendulum to make one full back-and-forth swing.
What is the period of a pendulum that takes 1 second?
A “seconds pendulum” has a half period of one second. It takes one second for it to go out (tick) and another second for it to come back (tock).
What kind of waves exhibit interference?
Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves, gravity waves, or matter waves.
What js the source of all waves?
The source of all wave motion is a disturbance in matter or a vibration.
What are the factors that affect a pendulum?
The forces of gravity, the mass of the pendulum, length of the arm, friction and air resistance all affect the swing rate.
What is the time period?
A time period (denoted by ‘T” ) is the time taken for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the time period of the wave decreases. The unit for time period is ‘seconds’.
How long must a pendulum be to have a period of 1.0 s?
0.248 m
Answer: 0.248 m length of pendulum will produce a period 1.0 s.
What is called interference?
Interference, in physics, the net effect of the combination of two or more wave trains moving on intersecting or coincident paths. The effect is that of the addition of the amplitudes of the individual waves at each point affected by more than one wave.
What happens when two waves collide?
When two waves meet at a point, they interfere with each other. In constructive interference, the amplitudes of the two waves add together resulting in a higher wave at the point they meet. In destructive interference, the two waves cancel out resulting in a lower amplitude at the point they meet.
What are two types of waves?
Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.