Electrical Fields

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

Tags

NGSS.MS-PS2-5

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges

• like charges

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Two objects with LIKE elecrical charges will

• attract each other

• even out in the end

• repel each other

• cause a spark

Tags

NGSS.MS-PS2-3

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.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If two charges repel each other, the two charges must be

• Positive and neutra

• Positive and negative

• positive and neutral

• negative and negative

Tags

NGSS.MS-PS2-3

What makes a charged balloon stick to the wall?

• Protons transferred to the balloon when it was rubbed on metal.

• Extra electrons on the surface of the balloon push away electrons in the wall, leaving a positively charged area.

• The rubber in the balloon has a magnetic field that pulls on the wood in the wall.

• Electricity in the balloon creates a magnetic field that attracts the metal in the wall.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An object becomes postiively charged when which of the following occurs?

• loses electrons

• gains electrons

• loses protons

• gains neutrons

If an object has the same number of positive and negative charges, its electrical charge is...

• positive

• negative

• neutral or no charge

• opposite

True or False:
In static electricity, charges build up on an object, but they do not flow continuously.

• True

• False

• 11

• Tuesday

What is the direction of the electric field around a positive charge?

• A) Radially inward

• B) Radially outward

• C) Circular around the charge

• D) No specific direction

Tags

NGSS.HS-PS3-5