Charging by Friction and Contact

If a negatively charged rod touches a neutral object, the object will be charged by what method? 

• Friction

• Contact

• Induction

• Convection

An object becomes negatively charged by

• losing protons
• gaining electrons
• losing electrons
• gaining protons

An object becomes positively charged by

• losing protons
• gaining electrons
• losing electrons
• gaining protons

Charging by friction requires rubbing. Charging by contact requires ...

• rubbing
• touching
• no contact

What method of static charging is shown in this picture

• Polarization
• Friction
• Induction
• Conduction

Tags

NGSS.MS-PS2-3

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.
• the silk has become negatively charged.
• protons have moved to the rod.
• glass attracts more protons.

Tags

NGSS.MS-PS2-5

Charging by contact results in both objects having the same charge.

• True
• False

Charging by Friction results in two objects with the same charge.

• True
• False