Electronic systems (AQA GCSE Design and Technology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are the three stages of an electronic system's process?
What are the three stages of an electronic system's process?
Input, process, output
What do output devices essentially convert?
What do output devices essentially convert?
Electrical energy into other forms
Which principle do speakers use to create sound waves?
Which principle do speakers use to create sound waves?
Electromagnetism
What part of a speaker vibrates to push air molecules and create sound?
What part of a speaker vibrates to push air molecules and create sound?
Cone-shaped material
How do buzzers differ from speakers in the sounds they produce?
How do buzzers differ from speakers in the sounds they produce?
Buzzers make a single tone or buzz
What vibrates inside a buzzer to create the buzzing sound?
What vibrates inside a buzzer to create the buzzing sound?
A thin metal disk
What metal is often used for lamp filaments due to its high melting point?
What metal is often used for lamp filaments due to its high melting point?
Tungsten
What percentage of energy in traditional lamps becomes visible light?
What percentage of energy in traditional lamps becomes visible light?
About 10%
Why are LEDs more energy-efficient than traditional lamps?
Why are LEDs more energy-efficient than traditional lamps?
They convert energy directly into light
What are the positive and negative sides of an LED called?
What are the positive and negative sides of an LED called?
Anode (positive), cathode (negative)
Which advantage do LEDs have over traditional light bulbs?
Which advantage do LEDs have over traditional light bulbs?
They last much longer
What key advantage do electromagnets have in output devices?
What key advantage do electromagnets have in output devices?
Turn on and off instantly