NEW
Font size
WorksheetsStatic electricity
Total questions: 22
Worksheet time: 12mins
Why does a Van de Graaff generator make your hair stand up if you touch the dome?
The current is trying to flow out of the hair ends.
The electrons gather on the hair ends and repel each other.
The hair is repelled by the dome of the Van de Graaff generator.
The hair is attracted to the surrounding air.
When rubbing against the insulator what lose electrons?
The belt
The wand
The Spark
The metal comb
When rubbing against the conductor what gains electrons?
The metal sphere
The belt
The metal comb
The person touching the sphere
The plastic step the teacher was standing on when touching the sphere is a good example of a strong ________
Insulator
Conductor
Why did the tin plates jump off the Vaan de Graaf when it was turned.
The plates become positive (+) like the sphere and were repulsed by the similar charge.
The plates become positive (+) like the sphere and were repulsed by the opposite charge.
The plates become negative (-) like the sphere and were repulsed by the similar charge.
The plates become negative (-) like the sphere and were repulsed by the opposite charge.
Why did people's hair stand on end when a person was touched the sphere of Van de Graaff
The positively charged (+) hair was repulsed by the positive charged (+) person and each other.
The positively charged (+) hair was repulsed by the negatively charged (-) person and each other.
The negatively charged (-) hair was repulsed by the negatively charged (-) person and each other.
The negatively charged (-) hair was repulsed by the positively charged (+) person and each other.
Why did water bend towards a charged object (a plastic tube or a balloon after it had been rubbed by wool)?
Water molecules (compounds) are charged
Water is attracted to charge
How does a Van der Graaf generator generate static electricity?
By friction when the rubber belt spins inside the plastic tube.
By induction when your hands are placed on the metal sphere.
By conduction when the rubber belt comes in contact with the copper comb
None of the above
