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