Waves CP Unit Test 24 25

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What are the two main types of waves?

Back

Mechanical waves and electromagnetic waves.

Front

Define wavelength.

Back

Wavelength is the distance between two consecutive crests or troughs in a wave.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

How is wave energy related to amplitude?

Back

Higher amplitude means greater energy in a wave.

Front

What is the speed of a wave?

Back

Wave speed is the distance a wave travels per unit of time, calculated as speed = wavelength × frequency.

Front

What is the difference between analog and digital signals?

Back

Analog signals are continuous and can vary in amplitude and frequency, while digital signals are discrete and represent data in binary form.

Front

Why do sound waves require a medium to travel?

Back

Sound waves are mechanical waves that need a medium (solid, liquid, or gas) to propagate.

Front

What happens to sound waves as they travel through different mediums?

Back

Sound waves travel faster in solids than in liquids, and faster in liquids than in gases due to the density and elasticity of the medium.

Front

What is noise in the context of waves?

Back

Noise refers to unwanted or random signals that interfere with the transmission of desired signals.