Static and Current Electricity

Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Electrical charge built up on the surface of an object is called _________________.

• static electricity
• current electricity
• lightning
• electrons

What is the major difference between static electricity and current electricity?

• Current electricity involves a continuous flow of elecrons; static electricity is a sudden transfer of protons

• Current electricity can be deadly; static electricity is almost always safe

• In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons

• Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

• The doorknob sends a burst of electric current into your body

• Millions of electrons go from your finger into the doorknob

• The doorknob sends millions of electrons into your finger

• Your finger becomes negatively charged

Tags

NGSS.MS-PS2-5

Lightning occurs because ___.

• the negative charges at the bottom of clouds are attracted to the positive charges on the ground.

• the positive charges at the bottom of clouds are attracted to the negative charges on the ground.

• the positive and negative charges inside clouds are attracted to each other

• All of these reasons are correct.

Tags

NGSS.MS-ESS2-5

NGSS.MS-PS2-3

A material in which electrons are able to move easily

• Circuit
• Insulator 
• Resistance 
• Conductor 

Which one is a conductor? 

• wood 
• iron 
• plastic spoon 
• paper 

Batteries and power plants are examples of ______________. 

• energy sources
• energy conduction
• energy transformation

Potential energy can be converted into _________________.

• food & waste
• water & light
• light & heat
• heat & food

Tags

NGSS.MS-PS3-2

What are electrons?

• Negatively charged subatomic particles

• Positively charged subatomic particles

• Neutrally-charged subatomic particles

• Negatively charged atoms

Tags

NGSS.MS-PS2-3