5.) What occurs when a wave traveling along a taut string reaches a fixed end where it has been tied to a wall? a.) The wave reflects back with the same amplitude and sign. b.) The wave reflects back with larger amplitude, but with opposite sign. c.) The wave is absorbed by the wall. d.) The wave reflects back with the same amplitude, but with opposite sign.
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
MULTIPLE CHOICE
1.) Two resistors can be either connected to a battery in series or in parallel. In which case, if either, is the equivalent resistance the smallest?
a.) It is not possible to know which method of wiring will result in the lowest equivalent resistance without knowing the values of the two resistances.
b.) When the two resistors are wired in series, the equivalent resistance is less than if they are wired in parallel.
c.) Both series and parallel wiring will result in the same equivalent resistance.
d.) When the two resistors are wired in parallel, the equivalent resistance is less than if they are wired in series.
2.) Complete the following statement: Electric field lines depend on
a.) the direction of the electric field.
b.) the strength of the electric field.
c.) All of the mentioned choices complete the statement correctly.
d.) the force exerted on a test charge.
3.) Which one of the following statements is true concerning a mirror that has a negative focal length?
a.) The mirror is concave.
b.) The images produced by the mirror are all real images.
c.) The mirror is convex.
d.) The mirror is somewhat more curved than one with a positive focal length.
4.) In analyzing circuits in which resistors are wired partially in series and partially in parallel, which one of the following statements describes the preferred approach to take to determine the equivalent resistance in the circuit?
a.) All together all of the resistors in series, ignoring any wired in parallel as they do not significantly add to the equivalent resistance of the circuit. The sum of the resistors in series is the equivalent resistance.
b.) All together all of the resistors in parallel, ignoring any wired in series as they do not significantly add to the equivalent resistance of the circuit. The sum of the resistors in parallel is the equivalent resistance.
c.) Find the sum of all the resistors. This is the equivalent resistance for the circuit.
d.) Break the circuit into smaller parts and find an equivalent resistance for each part. Then continue this process until all of the parts are added together correctly either in series or parallel until a single equivalent resistance is found.
5.) What occurs when a wave traveling along a taut string reaches a fixed end where it has been tied to a wall?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
