Magnetism & Electricity

A balloon is rubbed all over with wool.  The balloon will now attract wool because the balloon and wool

• are magnets
• have opposite charges
• have like charges
• have neutral charges

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In a static discharge, which particles move from one object to another?

• protons
• neutrons
• electrons
• atoms

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following could be used as the core of a simple electromagnet?

• drinking straw
• iron nail 
• a soda bottle
• an ink pen

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is voltage?

• a measure of electric current
• a kind of static elecricity
• a kind of current electricity
• a measure of potential energy difference

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

__________is an imbalance of electric charges within or on the surface of a material that builds up.

• static electricity
• current electricity
• circuits
• load