Waves And Quantum Phenomia

Question 1

What is the definition of a wave?

Answer 1

A wave is a disturbance that transfers energy through matter or space.

Question 2

True or False: Waves can only travel through solids.

Answer 2

False

Question 3

What is the difference between transverse and longitudinal waves?

Answer 3

In transverse waves, oscillations are perpendicular to the direction of wave travel; in longitudinal waves, oscillations are parallel.

Question 4

Fill in the blank: The wavelength is the distance between two consecutive __________.

Answer 4

crests or troughs

Question 5

What is the formula for wave speed?

Answer 5

Wave speed = frequency × wavelength

Question 6

What unit is frequency measured in?

Answer 6

Hertz (Hz)

Question 7

True or False: The amplitude of a wave is related to its energy.

Answer 7

True

Question 8

What is the term for the highest point of a wave?

Answer 8

Crest

Question 9

What is the term for the lowest point of a wave?

Answer 9

Trough

Question 10

What is the principle of superposition?

Answer 10

The principle of superposition states that when two or more waves overlap, the resultant displacement is the sum of the individual displacements.

Question 11

Fill in the blank: The frequency of a wave is the number of __________ per second.

Answer 11

cycles

Question 12

What phenomenon occurs when waves bend around obstacles?

Answer 12

Diffraction

Question 13

What is constructive interference?

Answer 13

Constructive interference occurs when two waves meet in phase, resulting in a wave with greater amplitude.

Question 14

What is destructive interference?

Answer 14

Destructive interference occurs when two waves meet out of phase, resulting in a wave with reduced amplitude.

Question 15

What is the Doppler effect?

Answer 15

The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.

Question 16

True or False: Sound waves are an example of transverse waves.

Answer 16

False

Question 17

What is the speed of sound in air at room temperature?

Answer 17

Approximately 343 meters per second.

Question 18

What are standing waves?

Answer 18

Standing waves are waves that remain in a constant position, formed by the interference of two waves traveling in opposite directions.

Question 19

Fill in the blank: The distance from the rest position to the crest of a wave is called the __________.

Answer 19

amplitude

Question 20

What is the relationship between frequency and wavelength for a given wave speed?

Answer 20

Frequency is inversely proportional to wavelength.

Question 21

What is a wavefront?

Answer 21

A wavefront is a surface over which an oscillation has a constant phase.

Question 22

What is the term for the time taken for one complete wave cycle to pass a point?

Answer 22

Period

Question 23

What is refraction?

Answer 23

Refraction is the bending of a wave as it passes from one medium to another due to a change in speed.

Question 24

What is the term for the ratio of the speed of light in a vacuum to the speed of light in a medium?

Answer 24

Refractive index

Question 25

True or False: Electromagnetic waves require a medium to travel through.

Answer 25

False

Question 26

What type of wave is light?

Answer 26

Electromagnetic wave