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Worksheets3ESO-Electricity and Electronics_2020
Total questions: 20
Worksheet time: 18mins
Which of the following materials are semiconductors:
Silicon
Germanium
Selenium
Vacuum
The Joule Effect has to do with ...
Motion
Light
Heat
All of them are correct
Calculate the value of the resistor in the image
120 ohms +-5%
21 ohms +-5%
12 ohms +-5%
210 ohms +-5%
What is the function of a capacitor
All of them are correct
To store electric charge
To control the flow of the current
To amplify the current
Which unit do we use to measure the value of a capacitor?
Facons
Volts
Farads
Watts
What is false about a NTC? only one option
It is a variable resistor
Its value depends on the temperature
Its value decreases as the temperature rises
Its value increases as the temperature rises
Which component represents the symbol of the image?
A LED
A Diode
A Transistor
A Capacitor
Which sentence is FALSE:
A diode allows electricity to flow from the Anode (+) to the Cathod (-)
A LED is a Light Emitting Diode
A Transistor has two electrodes: Anode and Cathode
A Transistor can work as an amplifier
Which electronic component can you see in the image?
A microchip
An Integrated circuit
Both are correct
What is false about a Transistor?
A transistor can work as a switch and as an amplifier
A transistor has three electrodes: Anode, Cathode and Base
There are two types of transistors NPN and PNP
A transistor has three electrodes: Emitter, Colector and Base
The three main effects of the Electric Current are:
Heat, Light and Motion
Resistors, Bulbs and Motors
Vols, Amps and Ohms
Generator, Receptor and Conductors
Which type of circuits are these sentences referred:
- Current has only one path to flow
- Same current flows for each resistor
Series
Parallel
Mix
The function of resistors is to create an opposition to the flow of electric current
True
False
Electronics is the the branch of physics and technology concerned with the behavior and movement of electrons in a conductor such as copper.
True
False
This symbol represents a ...
Capacitor
Battery
Transistor
Diode
The picture shows...
A potentiometer
A variable resistor
A resistor that changes its value when we rotate the knob
All of them are correct
60000+-5% ohms
6K+-5% ohms
600+-5% ohms
60+-5% ohms
The symbol of the image is a...
Transistor
Capacitor
Diode
LDR
The image shows a...
LDR
Light Dependant Resistor
Photoresistor
All of them are correct
A transistor can work as a switch or as...
Battery
Amplifier
Light
None of them are correct
