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Worksheets

Electronic components - By Juan José López Almendros

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

LDR means

a)

Light Dependent Resistor

b)

Light Device Regulator

c)

Low Drive Resistor

2.

In a NTC resistor

a)

the resistance increases when the temperature rises

b)

the resistance decreases when the temperature rises

3.

Relay

a)

Measures the temperature

b)

Is a electronic controlled switch

4.

A Transistor can be...

a)

PN and NP

b)

PNP and NPN

c)

All are correct

5.

HC-SR04

a)

Measures the humidty

b)

Are two speakers

c)

Use ultrasound technology for measuring distances

6.

Arduino...

a)

is a computer with Android O.S.

b)

is a industrial PLC

c)

is a microcontroller for educational purposes

7.

IR Sensor

a)

send and receive infrared signal to detect obstacles

b)

allow to change the TV channel

c)

is a light to construct a torch

8.

A sound sensor

a)

is provided with a microphone

b)

is provided with a speaker

9.

RFID means

a)

Radio For Inventors and Doctors

b)

Rich Famous Identificantion

c)

Radio Frequency Identification

10.

The Ohm's Law relates

a)

Current, Voltage, Resistance

b)

Power, Voltage, Impedance

c)

Current, Resistance, Light