Electricity and Magnetism

What is a wire in a circuit wrapped around an iron core called?

• electromagnet
• generator
• electric motor

What is a complete path through which electric charges can flow called?

• magnetic pole
• electric circuit 
• electric resistance
• magnetic field 

Tags

NGSS.4-PS3-2

Which of the following is a semiconductor?

• silver
• gold
• silicon
• plastic

Which of these in an insulator?

• a copper wire
• a silver spoon
• a plastic coating on a wire
• an aluminum coating on a wire

Each time a lightbulb is added to a series circuit, the other bulbs in the circuit 

• get brighter
• get dimmer
• stay the same brightness
• release more heat

A group of lights are connected in a parallel circuit.  One of the lights is removed.  The rest of the lights will

• get brighter
• get dimmer
• go out
• not change

Two lightbulbs are connected to an energy source by two loops.  What is this setup an example of?

• a parallel circuit
• a static discharge
• a series circuit
• an electromagnet

A string of lights is lit.  They are part of a series circuit.  One of the bulbs is removed.  The rest of the lights will

• go out
• stay lit
• get brighter
• get dimmer

In which of the following circuits will all of the remaining light bulbs go out if bulb 3 burns out?

• 
• 
• 
• 

Tags

NGSS.4-PS3-2

NGSS.3-PS2-3

Which object does NOT conduct electricity?

• copper wire

• iron nail

• salt water

• wood

Tags

NGSS.5-PS1-3