science 9 Unit D 1.0 Practice

What kind of electricity flows through circuits?

• static electricity

• current electricity

• nuclear electricity

• chemical electricity

Electricity is the movement of _____.

• circuit

• electrons

• molecules

• atoms

Which of the following statements best describes an electrical conductor?

• does not allow electricity to pass through it

• slows the flow of electricity through it

• allows the flow of electricity through it

Which of the following is an insulator?

• aluminum

• iron

• glass

• copper

This kind of electricity is formed by the build up of positive or negative charges on a surface.

• magnetism
• static electricity
• conductors
• current electricity

Two objects with LIKE static charges will

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

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

True or False
Like charges repel

• True
• False

Tags

NGSS.MS-PS2-3

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

• Current electricity involves a continuous flow of neutrons; 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

Which factor determines the outcome of an electrical shock?

• The amount of current
• Which phase is involved
• The raceway system
• The size of the electrical equipment being used