Electricity

Electricity that flows in a closed path is called a

• path
• current
• circuit

The flow of electricity in a circuit-

• current
• flow
• circuit

Tags

NGSS.HS-PS2-5

____________ stops the flow of electricity.

• A conductor
• An insulator
• A magnet

Two types of circuits are

• parallel and magnetic
• electromagnetic and series
• series and parallel

The unit for current is the 

• Volt
• Ohm
• Electron
• Amp

Tags

NGSS.HS-PS2-5

A circuit made of wires, a lamp, a switch, and a cell is shown at the right. What change is needed for the lamp to glow? 

• The switch needs to be opened.
• The switch needs to be closed.
• The cell needs an insulator.
• The wire needs to be connected to the bottom of the cell.

Tags

NGSS.4-PS3-2

Which statement best explains why the lamp does not glow? 

• Circuit 1 is an open circuit.
•  Circuit 1 is a closed circuit.
•  The negative terminal of Circuit 1 is connected to the cell.
• The positive terminal of Circuit 1 is connected to the cell.

Sally is creating a model to show what happens when electricity is used.  She decided to show the motor spinning below as her model. How could she best explain what is happening?

• Electric energy is transformed into energy of motion.
• Heat energy is transformed into energy of motion.
• Heat energy is transformed into electric energy.
• Electric energy is transformed into light energy.

A student was playing music on her new cell phone.    The teacher explained that the phone was powered by a battery. The teacher then asked her to explain what was happening to the energy in her new phone.   How could she best explain this to the class?

• Electric energy is transformed into sound energy.
• Light energy is transformed into sound energy.
• Sound energy is transformed into electric energy.
• Sound energy is transformed into electric energy.

Jill finds that all of the electric cords in her school are covered in plastic. Why is it important to cover the electric cords with plastic?

• Plastic is an insulator.
• Plastic is a conductor.
• Plastic is strong.
• Plastic will melt.