Two like charges

•  neutralize each other.
• repel each other. 
• must be neutrons. 
• attract each other.

Tags

NGSS.HS-PS2-4

The charge of an electron is 

• positive. 
• negative. 
• Electrons have no charge

Tags

NGSS.HS-PS2-4

An atom loses an electron.  What type of charge does it have now?

• positive
• negative

An atom gains an electron.  What type of charge does it have now?

• positive
• negative
• No charge

When an object gains electrons it becomes __________

• Neutral

• Positively charged

• Negatively charged

Which statement is true of a positively charged object?

• Positively charged objects do not contain any electrons.

• Positively charged objects do not contain neutrons or electrons.

• There is a lack of electrons on a positively charged object.

• The protons and the electrons are both positively charged on such objects.

Tags

NGSS.MS-PS1-1

Why does the child's hair stick up?

• The boy is grounded since he's at the bottom of the slide

• He gained a charge from the slide. His hairs have the same charge so they repel one another

• He gained a charge from the slide. His hairs have opposite charges so they repel one another

• When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up

Tags

NGSS.MS-PS2-3

When a balloon is rubbed on a sweater in what direction do the electrons move?

• From the sweater to the balloon
• From the balloon to the sweater
• They do not move
• They travel to the groud

What is the SI unit used to measure force? 

• pounds 
• grams 
• newtons 
• friction

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The SI unit of charge is

• the ampere
• the newton
• the coulomb
• the joule

Tags

NGSS.HS-PS3-5