Flashcardizz: 1st Semester Exam Review #3 24 25

Front

What type of wave has the longest wavelength and the lowest frequency on the electromagnetic spectrum?

Back

Radio waves are the type of electromagnetic wave with the longest wavelength and the lowest frequency.

Front

What type of signal is more affected by noise and greatly affects the quality of the signal?

Back

Analog signals are more affected by noise compared to digital signals, impacting their quality.

Front

What type of waves can move through a vacuum?

Back

Electromagnetic waves are the only type of waves that can move through a vacuum.

Front

Why does wave 4 have the most energy?

Back

Wave 4 has the most energy because it has the highest frequency.

Front

Which sound wave has the lowest pitch?

Back

The sound wave with the lowest frequency has the lowest pitch.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as wavelength increases, frequency decreases.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

The speed of electromagnetic waves in a vacuum is approximately 299,792 kilometers per second (or the speed of light).

Front

What is the difference between analog and digital signals?

Back

Analog signals are continuous and can take any value, while digital signals are discrete and represent data in binary form.

Front

What is amplitude in the context of waves?

Back

Amplitude is the maximum extent of a wave's oscillation, indicating the energy of the wave.

Front

What type of electromagnetic wave has the highest frequency?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.