Georgia Science Review

What is the purpose of the plastic coating?

• to carry electric current in a circuit

• to make the wire more flexible

• to insulate people or objects from the electric current in the wire

• to make it easier to tell when the wire is carrying electric current

Which are placed in the wrong column?

• air, copper, and glass

• iron, glass, and rubber

• bronze, glass, and iron

• silver, bronze, and glass

What energy transformation occurs when the doorbell rings?

• electrical energy into light energy

• electrical energy into sound energy

• chemical energy into light energy

• mechanical energy into electrical energy

What other item does Sara need to make a complete circuit.

• a battery

• a switch

• an insulator

• a conductor

Tags

NGSS.3-5-ETS1-1

What is the difference between a series circuit and a parallel?

• A series circuit has only one path for current to follow, and a parallel circuit has more than two paths.

• A series circuit uses a battery power source and a parallel circuits uses a wall outlet.

• A series circuit only has current flowing one direction, and a parallel circuit has current flowing in two directions.

• A series circuit only powers one or two things, and a parallel circuits powers many devices.

Static electricity is 

• The balance of electrical charge on an object

• The imbalance of electrical charge on an object

• The discharge of electrical charge

• The build up of protons in the nucleus of an atom 

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

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

Where is the force of attraction the strongest on a magnet?

• at the poles

• in the middle

• above the magnet

• below the magnet

How are electromagnets different from magnets?

• magnets can be turned on/off

• you can turn an electromagnet on/off

• magnets are more powerful

• magnets have a North and South pole

Tags

NGSS.MS-PS2-3