Chemical Effects of Electric Current Quiz

What is a good conductor of electricity?

• Wood

• Plastic

• Copper

• Rubber

What should you use for experiments instead of the electric supply from the mains?

• Generator

• Inverter

• Electric cells

• Solar panels

What happens when a liquid allows electric current to pass through it?

• The bulb does not glow

• The bulb glows

• The tester stops working

• The circuit remains incomplete

What is the effect of a weak current on a bulb?

• The bulb explodes

• The bulb glows brightly

• The bulb flickers

• The bulb does not glow

What can be used to detect a weak current?

• A barometer

• A magnetic compass

• A voltmeter

• A thermometer

What is the role of an LED in a tester?

• It glows even with a weak current

• It explodes with a weak current

• It does not glow at all

• It glows with a strong current

What is the process of depositing a layer of metal on another material called?

• Electrolysis

• Electrostatic

• Electroplating

• Electromagnetism

What happens when electric current passes through a conducting solution?

• It causes magnetic changes

• It causes chemical reactions

• It causes no change

• It causes physical changes

What is a common application of electroplating?

• Making batteries

• Generating electricity

• Coating metal objects

• Heating water

Why is chromium plating used?

• It is shiny and resists scratches

• It is a good conductor

• It is heavy

• It is cheap