Wave
What type of wave is a light wave?
Transverse wave
What is the name of the angle between the incident ray and the normal line?
Angle of incidence
What type of wave is sound?
Longitudinal wave
What is a key feature of fibre optic cables used in communication?
They use light waves to transmit information
What is one of the main disadvantages of traditional advertising (TV, radio, print)?
High cost
Which is an example of a mechanical wave?
Sound wave
What type of surface is most likely to produce a clear reflection?
Smooth surface
What is the speed of sound in air at room temperature (20°C)?
343 meters per second
What does the process of modulation do in communication?
It alters the properties of the wave to carry information
What is the main advantage of social media marketing?
Broad audience segmentation possibilities
What type of wave does not require a medium to travel through?
Light wave
What happens when light hits a reflective surface?
It is reflected off the surface
What is the main difference between sound and light waves?
Sound waves require a medium to travel, while light waves do not
What is the primary use of electromagnetic waves in communication?
To transmit data over long distances
Which is an example of content marketing?
Creation of informative articles on the company blog
How does the speed of a wave change when the medium changes?
It decreases in a denser medium
What is the normal line in the context of light reflection?
A line that is perpendicular to the surface where light hits
What is sound?
A form of energy that travels through air as vibrations
What is a key feature of satellite communication?
It transmits data using radio waves to and from satellites in orbit
What is the main goal of advertising marketing?
To promote products and services to influence purchasing decisions
What happens when two waves meet in a process called interference?
The waves cancel each other out or amplify each other
What does the law of reflection state?
The angle of incidence is equal to the angle of reflection
How does sound travel?
Through a medium like air, water, or solid materials as vibrations
How does a radio transmitter work?
It converts sound into electric signals and sends them through the air as radio waves
What is "remarketing"?
The practice of showing ads to people who have interacted with your brand before