Electricity Quiz

A light bulb converts electrical energy into which of the following?

• light only
• heat only
• heat and light
• light and motion

Many appliances in your home and school use electrical energy. Which of these appliances is intended to convert electrical energy into sound energy?

• printer
• refrigerator
• electric heater
• music amplifier

When Lindsay got home from school, she noticed that there was no electricity. Which of these items will she be able to use BEFORE THE ELECTRICITY COMES BACK?

• Television
• Desk stop computer
• Violin
• Toaster

The girl shown is using an electrical appliance that has a motor. Which energy transformation is she using?

• electrical energy into heat energy and energy of motion
• electrical energy into sound energy and chemical energy
• sound energy into electrical energy and energy of motion
• energy of motion into electrical energy and sound energy

An insulator....

• allows the flow of electrical charges
• resists the flow of electrical charges

A conductor....

• allows the flow of electrical charges
• resists the the flow of electrical charges

Silver, copper, aluminum are examples of....

• conductors
• insulators

Plastic, glass, and rubber are examples of....

• conductors
• insulators

In order for an electrical device to work, the circuit must form a complete loop. This is called a(n) __________ CIRCUIT. In a(n) ________ circuit there are no breaks in the path. 

• closed
• open

When the path is broken, and charges cannot flow, we call this a(n) _______ CIRCUIT

• closed
• open