What is the charge of an electron?
Hyper
Negative
Neutral
Positive
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?
A free electron
Negatively charged
Positively charged
It explodes
Which of the following materials is an insulator?
Copper
Silver
Mayonnaise
Glass
What is the symbol for electric current?
R
V
I
C
Complete the following sentence: An electric ________________ is a set of connected components through which electric current flow.
Electron
Proton
Circuit
Conductor
Some materials let electricity pass through them easily. These materials are known as…
Conductors
Circuits
Insulators
Vegetables
Some materials do not allow electricity to pass through them. These materials are known as…
Voltage
Insulators
Electrons
Conductors
What unit is Current measured in?
Volt
Amp
Ohm
CC's
What unit is Resistance measured in?
Ohm
Volt
Amp
OH!
What unit is Voltage measured in?
Volt
Voltron
Ohm
Amp
What current flows in a 100 Ω resistor if 5 V is connected across it?
5.0 A
500 A
20 A
0.05 A
Which equation correctly links voltage V, current I and resistance R?
V = I x R
V = R + I
V = R / I
V = I / R
A current of 0.5 A flows through a 22 Ω resistor. What is the value of the voltage across it?
7 V
0.23 V
44 V
11 V
The opposition of the components in a circuit to the flow of the electric current is called…
Insulators
Resistance
Conductors
Voltage
The difference between the electrical energy at two points in a circuit is called…
Potato
Current
Voltage
Resistance
The number of electrons that pass through a specific point in one second is called…
Carrot
Resistance
Voltage
Current
