Materials that conduct electricity are called_________.
Conductors
Give an example where static electricity is used in the industry.
spray painting, cleaning polluted air and in a printer
What does the acronym D.C. stand for in electricity?
Direct Current
What is the name of the sub-atomic particle that allows electric current to flow?
Electrons
All of the following can conduct electricity except:
a) steel nail
b) copper tube
c) plastic cover
d) graphite rod
c) plastic cover
What type of electricity produces lighting?
static electricity
What is the name of the device used to measure current?
An ammeter
What does the acronym A.C. stand for in electricity?
Alternating Current
What is a fuse?
A safety device that will 'blow'(melt) if the current flowing through exceeds a specified value.
Like charges_____,where as unlike charges_______.
Like charges repel, whereas unlike charges attract.
A circuit is a complete pathway that allows electricity. Name the two types of circuits.
Open circuits and Closed circuits
State the law of electrostatics.
D.C current flows in_____ direction in a circuit.
One
NEGATIVE OR POSITIVE CHARGES produce electricity?
NEGATIVE
If someone is electrocuted should I touch them to ensure that he/she is still alive?
YES OR NO
NO
Name two(2) materials that can conduct electricity
Any metal listed and graphite(non-metal)
If someone is electrocuted the first step is to turn off the source of the electricity.
YES OR NO
YES
Give an example of D.C current.
Current from cell or battery
The property that stops the flow of an electric current is termed?
Resistance
Define the term electrocution.
The process by which an electric current passes through the human body and causes injuries or death.
When charges move from one point to another they produce an______________.
Electric current
What is voltage?
Voltage is the force that makes electric current flow.
In the A.C. circuit, the electrons keep changing directions.
TRUE OR FALSE
TRUE
Differentiate between a series and parallel circuit?
In a series circuit, all components are connected end-to-end to form a single path for current flow. In a parallel circuit, all components are connected across each other with exactly two electrically common nodes with the same voltage across each component.
Graphite is a non-metal. Can graphite conduct electricity?
YES OR NO
Yes-Graphite is the only non-metal that allows an electric current to flow.