Static Electricity

Two objects with LIKE static charges will

• attract each other
• even out in the end
• repel each other
• cause a spark

Which subatomic particle has a POSITIVE charge?

• Proton
• Neutron
• Electron
• Nucleus

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
• our finger becomes negatively charged

Which subatomic particle has a NEGATIVE charge?

• Proton
• Neutron
• Electron
• Nucleus

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

• A positive charge.
• A negative charge.
• A neutral charge
• No charge at all

Static charges build up when

• protons move within an object
• electrons move within an object
• neutrons move within an object
• the nucleus moves within an object

Static electricity is:

• electricity flowing in a wire
• the buildup of electric charges on an object
• when protons move between objects

If two objects with static charge are attracted, what do you know about them?

• They are both positively charged.
• They are both negatively charged.
• One is positively charged and one is negatively charged, but you won't be able to tell which is which.
• One is positively charged and one is negatively charged, and you can tell which is which by looking at them.

Why can you get a shock if you touch a metal doorknob after walking across a wool carpet?

• You have gained electrons; the doorknob has no electrons.

• You have gained neutrons; the doorknob has fewer electrons.

• You have lost electrons; the doorknob has many electrons.

• You have gained electrons; the doorknob has many electrons.

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative