Font size
WorksheetsElectricity: From Nature to Technology
Total questions: 1
Worksheet time: 22mins
1-15.
Answer the questions below after watching the video
What is the natural form of electricity mentioned?
Magnetic fields
Lightning
Wind energy
Solar energy
What causes lightning?
Solar flares
Electric charges in clouds
High temperature
Magnetic fields
What are the two types of electric currents?
Static and dynamic
Direct and indirect
Direct and alternating
Positive and negative
What is the main difference between direct and alternating current?
Their source
Their speed
The direction of flow
Their color
Which device is mentioned as not needing recharging?
Generators
Fuel cells
Solar cells
Batteries
What is the role of solar cells?
To insulate homes
To conduct electricity
To convert sunlight into electricity
To store electricity
How do fuel cells generate electricity?
Splitting atoms
Using sunlight
Through a chemical reaction
By heating water
What affects the flow of electricity through wires?
Color and texture
Flexibility
Length and thickness
Material only
What does a transformer do?
Generates electricity
Stores excess electricity
Converts AC to DC
Ensures correct power supply to homes
Which power plant uses the earth's heat to generate electricity?
Geothermal
Thermal
Nuclear
Hydro
What is static electricity?
Current in batteries
Electricity from power plants
Shock from touching a doorknob
Electricity in water
Why are electrical wires covered in plastic or rubber?
To make them flexible
To prevent electric shock
To make them look nice
For color coding
What is an insulator?
A material that conducts electricity
A device that stores electricity
A material that blocks electricity flow
A tool for measuring electricity
Who is associated with the kite and key experiment?
Benjamin Franklin
Thomas Edison
Albert Einstein
Nikola Tesla
What did Benjamin Franklin prove?
Electricity can be stored
Connection between lightning and electricity
How to generate alternating current
The invention of the battery
