Frey Science More Electricity

Electric charges that are ______________ attract each other.

• the same
• negative
• positive
• different

__________________ is the transfer of electrons from a charged object to another object by direct contact.

• Convection
• Radiation
• Friction
• Conduction

The unit of measure of voltage is the __________

• Ohm
• Watt
• Watt-Hour
• Volt

The unit of measure for current is _______________.

• Ohm
• Watt
• Volt
• Amp

Energy can be calculated by 

• dividing power by time
• multiplying power by time
• dividing voltage by current
• multiplying current by resistance

As the temperature of most conductors increases, the resistance ______________________. 

• decreases
• increases
• doubles
• stays the same

In a ____________________ there is only one path for current to take. 

•  series circuit
• parallel circuit
• compound circuit
• short circuit

If one light bulb is removed from a parallel circuit with three bulbs, then the other bulbs _____________ .

• brightness  will decrease
• brightness will increase
• brightness remain the same
• brightness will double since there are now only two bulbs

The electrons in an insulator are _________________________ to their atoms.

• unrelated
• loosely bound
• unbound 
• thightly bound

In a circuit diagram, a zigzag line drawn inside of a circle represents a type of _______________. 

• switch
• motor
• voltmeter
• resistor or light bulb