BMST Waves, Sound, and Light 2

Question 1

Which of the following is NOT part of the electromagnetic spectrum?

Accepted Answer

Sound waves

Answer

Sound waves are mechanical waves that require a medium to travel and are not electromagnetic; X-rays, ultraviolet, and radio waves are all electromagnetic.

Question 2

Which color of visible light has the longest wavelength?

Accepted Answer

Red

Answer

Red light has the longest wavelength in the visible spectrum (approximately 620–750 nm), while violet has the shortest.

Question 3

What is the Doppler effect?

Accepted Answer

The change in observed frequency due to relative motion between source and observer

Answer

The Doppler effect describes how the observed frequency of a wave changes when the source and observer move relative to each other, like a siren sounding higher as it approaches.

Question 4

What does the amplitude of a wave represent?

Accepted Answer

The maximum displacement from the rest position

Answer

Amplitude is the maximum displacement of a wave from its equilibrium position, and it is directly related to the energy the wave carries.

Question 5

Through which medium does sound travel fastest?

Accepted Answer

Steel

Answer

Sound travels fastest through solids like steel because tightly packed particles transmit vibrations more quickly than liquids or gases.

BMST - Basic Math and Science Test Practice Test

BMST - Basic Math and Science Test Practice Test

BMST Waves, Sound, and Light 2