WorksheetsElectrostatics Conceptual Practice
Total questions: 15
Worksheet time: 8mins
A neutron will ___ a proton.
attract
repel
not affect
A nonpolar neutral molecule will ___ an electron
be attracted by
be repelled by
be unaffected by
An electron will ____ a proton.
attract
repel
not affect
A lithium ion (Li+1) will ____ a proton
attract
repel
not affect
A balloon (made of neutral polar molecules) will ____ a negatively charged rod.
be attracted by
be repelled by
be unaffected by
When you rub a balloon on your hair, you are charging both hair and balloon by ____.
contact
friction
induction
convection
When charge builds up before a lightning strike, it creates an opposite charge in the objects close to it (trees, poles, etc.). This is an example of charging by ____.
contact
friction
induction
radiation
In a laboratory, a metal rod is charged up so that it has +0.8 C on it. It touches a sphere with a charge of -1.5 C. After contact, the sphere has a charge of -0.3 C. What is the charge on the rod after contact?
-0.7 C
-0.3 C
-0.4 C
+0.3 C
Which law of physics do you use to conclude that the total charge remains the same before and after objects are charged by friction or contact?
Law of Conservation of Charge
Law of Conservation of Energy
Basic Law of Electrostatics
Newton's 2nd Law of Motion
In which way(s) of charging do objects end up with charges of opposite sign?
contact only
friction only
induction only
contact and friction
induction and friction
When a glass rod is rubbed with silk, which item(s) become positively charged? (To answer this, you may need to consult the section of the triboelectric sequence that is pictured here.)
glass rod only
silk only
both glass rod and silk
neither glass rod nor silk
What does the Basic Law of Electrostatics say? (Check all that apply.)
Charge cannot be created or destroyed.
Charge cannot be transferred.
Opposite charges attract.
Like charges repel.
Opposite charges repel.
Which of these is a property of a conductor?
It has "free" electrons that can shift from atom to atom.
Charge tends to stay in place on it.
It cannot be any type of metal.
It is organized by conductivity on the triboelectric sequence.
What does polarization do to a molecule?
It ionizes it.
It separates opposite charges into different locations.
It neutralizes it.
It turns it from an insulator into a conductor.
Which way of charging explains why static cling happens in the dryer?
charging by contact
charging by friction
charging by induction
