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Electricity 2nd of ESO
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How do like charges behave?
 
They repel one another
 
They attract one another
 
They have no effect on each other
 
They explode
What is the overall electric charge of an atom?
 
Neutral
 
Positive
 
Negative
 
Angry
In a circuit, when the current divides into two or more paths, the circuit is a:
 
Parallel circuit
 
Series circuit
 
Twin circuit
 
Siamese circuit
Which control components are used for the doorbell in your house?
 
Push buttons
 
Parallel circuits
 
Receptors
 
Your feet
Some examples of control components are:
 
Switches, 3-way switches and push buttons
 
Fuses and thermal magnetic circuit breakers
 
Light bulbs, motors and bells
 
Apples, Oranges and Bananas
… transform the electrical energy that they receive into another type of useful energy.
 
Receptors
 
Generators
 
Protection components
 
Vegetables
The elements that join all the components of a circuit and allow the flow of the current are called…
 
Conductors
 
Receptors
 
Generators
 
Push buttons
… produce the energy necessary for electrons to move.
 
Generators
 
Wires
 
Protection components
 
Receptors
A torch lamp takes a current of 0.3 A from a 3 V battery. Calculate its resistance.
 
10 Ω
 
0,9 Ω
 
0,1 Ω
 
1 Ω
What do we need to connect our circuit?
 
Wires
 
Strings
 
Spaghetti
 
Anything
What does the motor do?
 
It moves the axis
 
It sounds
 
It produce renewable electricity
 
It explodes
What is the main component of a circuit?
 
Battery
 
Switch
 
Bulb
 
Wires
What are the components of the atoms?
 
Neutrons, protons and electrons
 
Neutrals, key and bacteria
 
Protons, electrons and atoms
 
Bacon, lettuce and tomato
What is the battery for?
 
To make the circuit work with electricity
 
Making the bulb works but not the switch
 
Having Volts
 
To make sound
The number of electrons that pass through a specific point in one second is called…
 
Current
 
Carrot
 
Voltage
 
Resistance
The difference between the electrical energy at two points in a circuit is called…
 
Voltage
 
Resistance
 
Potato
 
Current
The opposition of the components in a circuit to the flow of the electric current is called…
 
Resistance
 
Voltage
 
Conductors
 
Insulators
A current of 0.5 A flows through a 22 Ω resistor. What is the value of the voltage across it?
 
11 V
 
44 V
 
0.23 V
 
7 V
Which equation correctly links voltage V, current I and resistance R?
 
V = I x R
 
V = I / R
 
V = R / I
 
V = R + I
What current flows in a 100 Ω resistor if 5 V is connected across it?
 
0.05 A
 
20 A
 
500 A
 
5.0 A
What unit is Voltage measured in?
 
Volt
 
Amp
 
Ohm
 
Voltron
What unit is Resistance measured in?
 
Ohm
 
Volt
 
Amp
 
OH!
What unit is Current measured in?
 
Amp
 
Volt
 
Ohm
 
CC's
Some materials do not allow electricity to pass through them. These materials are known as…
 
Insulators
 
Conductors
 
Electrons
 
Voltage
Some materials let electricity pass through them easily. These materials are known as…
 
Conductors
 
Insulators
 
Circuits
 
Vegetables
Complete the following sentence: An electric ________________ is a set of connected components through which electric current flow.
 
Circuit
 
Electron
 
Proton
 
Conductor
What is the symbol for electric current?
 
I
 
R
 
V
 
C
Which of the following materials is an insulator?
 
Glass
 
Copper
 
Silver
 
Mayonnaise
An atom has a neutral charge, because it contains the same number of protons and electrons. If it loses an electron what does it become?
 
Positively charged
 
Negatively charged
 
A free electron
 
It explodes
What is the charge of an electron?
 
Negative
 
Positive
 
Neutral
 
Hyper