Electricity class 8

Name a device used to detect presence of charge and nature of charge on an object

• Battery

• Fuse

• Electoscope

• Transformer

Moving charges constitute

• Electrode

• Electric current

• Static electricity

• Magnetism

The SI unit of electric current is

• Coulomb

• Ampere

• Volt

• Ohm

Good conductors have many loosely bound

• Molecules

• atoms

• protons

• electrons

When a glass rod is rubbed with a silk cloth the charge on glass rod will be

• Positive

• Negative

• Neutral

• No charge

SI unit of electric charge is

• ampere

• volt

• coulomb

• joule

How can it be explained that someone's hair can stick to a balloon?

• There is static electricity

• There is too much dust in the air

• A parallel circuit was too long

• The person needs to wash his hair

When you charge an electroscope by touching it with a charged balloon, the process is called _____.

• friction
• conduction
• induction
• grounding

A circuit that is connected to Earth is said to be _____.

• series
• parallel
• grounded
• discharged

A neutral object becomes negatively charged when it loses electrons.

• true
• false