4F - 6. Fundamentals of Electricity

What is the term for the charge that can build up when materials are rubbed together?

• Electrostatic charge

• Thermal charge

• Electromagnetic charge

• Dynamic charge

What happens when two charged polythene rods are brought close together?

• They create sparks

• They neutralize each other

• They repel each other

• They attract each other

What are the two types of electric charge?

• Positive and negative

• Static and dynamic

• Strong and weak

• Positive and neutral

What is the central part of an atom called?

• Electron

• Neutron

• Nucleus

• Proton

What charge do neutrons have?

• No charge

• Variable charge

• Positive

• Negative

What is the SI unit of charge?

• Volt

• Ohm

• Coulomb

• Ampere

What type of materials are considered conductors?

• Materials that are semiconductors

• Materials that are insulators

• Materials that let electrons pass through

• Materials that hardly conduct electricity

What happens to electrons in insulators?

• They are tightly held to atoms

• They move freely

• They are lost easily

• They gain charge quickly

What is the effect of an electric field on a positive charge?

• It repels the charge

• It neutralizes the charge

• It attracts the charge

• It has no effect

What is a stream of ions considered?

• A type of insulator

• A magnetic field

• A flow of charge

• A static charge