1st Semester Final Exam Review of WAVES

Front

What is diffraction?

Back

Diffraction is the bending of waves around obstacles and the spreading out of waves when they pass through small openings.

Front

What are infrared waves?

Back

Infrared waves are electromagnetic waves with wavelengths slightly longer than visible light, commonly used in remote controls and thermal imaging.

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance from the rest position to the crest or trough of a wave, indicating the wave's energy.

Front

What is the rest position of a wave?

Back

The rest position is the baseline level of the wave, typically halfway between the crest and trough.

Front

What type of wave is sound?

Back

Sound is a compressional (or longitudinal) wave that travels through a medium by compressing and rarefying the particles.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points in phase on a wave, such as from crest to crest or trough to trough.

Front

What is the difference between transverse and longitudinal waves?

Back

In transverse waves, the particle movement is perpendicular to the direction of wave travel, while in longitudinal waves, the particle movement is parallel to the direction of wave travel.

Front

What is reflection in terms of waves?

Back

Reflection is the bouncing back of a wave when it hits a barrier, such as light reflecting off a mirror.

Front

What is refraction?

Back

Refraction is the bending of waves as they pass from one medium to another, caused by a change in speed.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through a vacuum and do not require a medium, including radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.