Electricity

all matter is made of  

• energy 
• atoms 
• electrons 
• compounds 

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

The central region of an atom where its neutrons and protons are is called the

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

Why do electricians always wrap wires in plastic?

• Plastic comes in many different colors

• Plastic is a good electrical conductor

• Plastic makes the wires easy to bend

• Plastic is a good electrical insulator

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Which of the following items would conduct electricity?

• Aluminum ladder

• Metal screwdriver

• Wooden baseball bat

• Rubber flip flops

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

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What contribution did Thomas Edison make toward the study of electricity?

• He invented the light bulb

• He invented a generator that would produce electricity

• He discovered the nucleus of an atom

• He discovered that lightning is a form of electricity

A science class was completing an experiment on electrical circuits. Why did the bulb go out each time the switch was opened?

• Opening the switch broke the circuit

• The battery was probably going flat

• There was too much electricity flowing

• Opening the switch closed the circuit