MICROPHONES
SPEAKERS
ENTERTAINMENT TECHNOLOGY
MUSICAL INSTRUMENTS
REAL-WORLD IMPACT & FUTURE
100

What device changes sound into an electrical signal?


Microphone


100

What do speakers convert electrical signals into?


Sound


100

What device displays images and videos on a screen?


Projector


100

What produces sound in musical instruments?


Vibrations


100

What technology helps doctors diagnose diseases using sound waves?


Ultrasound


200

What part of a microphone vibrates when we speak or sing?


Diaphragm


200

What part of a speaker helps create vibrations?


Magnet


200

What technology uses lights and colors to create a mood on stage?


Stage lighting


200

What vibrates to produce sound in a harp?


Its strings


200

What procedure allows doctors to examine internal organs using a camera?


Endoscopy


300

Name two places where microphones are commonly used.


Concerts and recording studios


300

What part of a speaker produces vibrations that become sound?


Cone


300

Where are projectors commonly used?


Classrooms, cinemas, concerts, and presentations


300

What determines whether a sound is high or low?


Frequency


300

What technology adds digital objects or information to the real world?


Augmented Reality (AR)


400

What does a microphone convert sound vibrations into?


An electrical signal


400

What is the main difference between a microphone and a speaker?


A microphone converts sound into electrical signals, while a speaker converts electrical signals into sound.


400

 What does a projector’s lens do?


It focuses light to make the image clear and sharp.


400

What determines whether a sound is loud or soft?


Amplitude


400

What technology creates a computer-generated environment users can interact with?


Virtual Reality (VR)


500

How does a microphone detect the sound of a person’s voice?


Its diaphragm vibrates in response to sound waves.


500

How do the magnet and cone work together in a speaker?


The magnet helps create vibrations, while the cone produces those vibrations as sound.


500

How does stage lighting improve a performance?


It makes the performance more engaging and visually exciting.


500

How do frequency and amplitude affect musical sounds?


Frequency affects pitch, while amplitude affects volume.


500

How can AI help with audio and visual production?


It can assist with audio processing, sound restoration, music and video production, visual effects, and content creation.