PHY2 Homework 5 - Electricity & Electromagnetism

Two neutral conducting pop cans are touching each other.  A negatively-charged balloon is brought near one of the cans.  As the balloon approaches, some _____.        

• protons begin to move from can X to can Y
• protons begin to move from can Y to can X 
• electrons begin to move from can X to can Y
• electrons begin to move from can Y to can X

Two neutral conducting pop cans are touching each other.  A positively-charged balloon is brought near one of the cans.  As the balloon approaches, some _____.     

• protons begin to move from can X to can Y
• protons begin to move from can Y to can X 
• electrons begin to move from can X to can Y
• electrons begin to move from can Y to can X

Two neutral conducting pop cans are touching each other.  A negatively-charged balloon is brought near Can X.  Once brought near, one might notice that can X has an excess of ____ charge and can Y has an excess of ____ charge.        

• negative, positive
• positive, negative
• negative, neutral 
• negative, negative

Two neutral conducting pop cans are touching each other.  A positively-charged balloon is brought near Can X.  Once brought near, one might notice that can X has an excess of ____ charge and can Y has an excess of ____ charge.      

• negative, positive
• positive, negative
• positive, neutral
• positive, positive  

TRUE  or  FALSE?  
Two neutral conducting pop cans are touching each other.  A negatively-charged balloon is brought near Can X.  As the balloon approaches Can X, there is a movement of electrons between the balloon and can X (in one direction or the other).      

• TRUE  
• FALSE

TRUE  or  FALSE?  
Two neutral conducting pop cans are touching each other.  A positively-charged balloon is brought near Can X.  As the balloon approaches Can X, there is a movement of electrons between the balloon and can X (in one direction or the other).     

• TRUE  
• FALSE

Two neutral conducting pop cans are touching each other.  A negatively-charged balloon is brought near one of the cans.  The cans are separated while the balloon is nearby.  During the process, can X becomes charged positively because _____.       

• protons leave can Y and enter can X  
• electrons leave can Y and enter can X  
• electrons leave can X and enter can Y  
• electrons leave can X and enter the balloon

Two neutral conducting pop cans are touching each other.  A positively-charged balloon is brought near one of the cans.  The cans are separated while the balloon is nearby.  During the process, can X becomes charged negatively because _____.      

• protons leave can Y and enter can X 
• electrons leave can Y and enter can X 
• electrons leave can X and enter can Y 
• electrons leave can X and enter the balloon

Two neutral conducting pop cans are touching each other.  A positively-charged balloon is brought near one of the cans.  The cans are separated while the balloon is nearby.  During the process, can Y becomes charged positively because _____.

• protons leave can Y and enter can X 
• electrons leave can Y and enter can X 
• electrons leave can X and enter can Y 
• electrons leave can X and enter the balloon