LED Quiz

LED Quiz

9th Grade

19 Qs

quiz-placeholder

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LED Quiz

LED Quiz

Assessment

Quiz

Life Skills

9th Grade

Easy

Created by

Karina Salazar Chamlati

Used 2+ times

FREE Resource

19 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What does LED stand for?

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When does an LED emit light?

When the exit voltage is zero

When the power rating is greater than 1

When a current pass through it

When the inductance value is greater then the voltage

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What kind of device is an LED?

Conductor

Semiconductor

Insulator

Superconductor

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an LED commonly described as due to the way its light generates within the solid semiconductor material?

A gas discharge device

A solid-state device

A mechanical device

A super conductor device

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are photons?

Semiconductor materials

Subatomic particles with a positive charge

Light particles

Subatomic particles with a neutral charge

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What determines the color of the light emitted by an LED?

The size of the LED

The wavelength of the emitted light

The weight of the LED

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when an electric current is passed through an LED?

It cools down the device

It emits sound

It emits light

It stops functioning

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