PRACTICE FOR II TRIM TEST 2

Which type of current is generally used for appliances with a motor, such as a refrigerator?

• Direct current

• Battery current

• Alternating current

What is the power source for appliances that use direct current (DC)?

• Batteries

• Wall outlet

• Solar panels

Why do batteries need to be replaced over time?

• They run out of electricity

• They get too old to function

• The chemicals inside them stop producing an electric current

What type of battery can reverse the chemical reaction using a battery charger?

• Alkaline batteries

• Disposable batteries

• Rechargeable batteries

Who invented the lightning rod?

• Nikola Tesla

• Benjamin Franklin

• Guglielmo Marconi

Who improved the electric arc lamp and brought electric lights to the streets?

• Nikola Tesla

• Charles Brush

• Thomas Edison

Who designed the alternating current (AC) electric system?

• Nikola Tesla

• Thomas Edison

• Benjamin Franklin

Who is known as the inventor of the radio?

• Charles Brush

• Thomas Edison

• Guglielmo Marconi

Does a flashlight have static or current electricity?

Does lightning have current or static electricity?