Physics QS 1 (Test 1)
During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...
the plastic strip lost electrons to the cotton during the charging process.
What is the difference between the nucleus of a Rh-103 atom and the nucleus of a Pd-106 atom?
Pd 106 has 1 more proton and 2 more neutrons
If a slow stream of water is attracted to a rubber rod, the slow stream of water will ____________________ a positive rod.
also be attracted to
Upon entering the room, you observe two balloons suspended from the ceiling. You notice that instead of hanging straight down vertically, the balloons seems to be repelling each other. You can conclusively say ...
both balloons are charged with the same type of charge.
If two objects electrically repel each other, then we can say for certain that
both objects must be charged.
A balloon will stick to a wooden wall if the balloon is charged
either positively or negatively.
An insulator differs from a conductor in that an insulator
has fewer freely moving electrons
To say that an object is electrically polarized is to say
its charges have been rearranged.
Charge carriers in a metal are electrons rather than protons because electrons are
loosely bound
Balloons X, Y, and Z are suspended from strings as shown above. Negatively charged balloon X attracts balloon Y and balloon Y attracts balloon Z. Balloon Z ____.
may be neutral, positively charged, or negatively charged.
Rub a glass rod with silk and the silk becomes
negatively charged
Rub your hair with a comb and the comb becomes
negatively charged
A positive ion has more
protons than electrons
A negatively charged rod is brought near a metal conductor. The electrons in the metal conductor experience a force of
repulsion
A positively charged rod is brought near a metal conductor. The protons in the metal conductor experience a force of
repulsion
How many protons, neutrons, and electrons are in a single atom of Ni-60 if it has a +2 charge?
28 protons, 32 neutrons, 26 electrons
How many protons, neutrons, and electrons are in a single neutral atom of Ag-107?
47 protons, 60 neutrons, 47 electrons
How many protons, neutrons, and electrons are in a single atom of Ag-108 if it has a +2 charge?
47 protons, 61 neutrons, 45 electrons
If two objects electrically attract each other, then we can say for certain that
at least one object must be charged
A negatively charged rod is brought near a metal conductor. The protons in the metal conductor experience a force of
attraction
A negatively charged rod is brought near a metal conductor. Which, if any, particles move away from the rod?
electrons
A positively charged rod is brought near a metal conductor. Which, if any, particles move toward the rod?
electrons
When mylar and paper come into contact, which material takes electrons from the other?
mylar
Rub a balloon with fur and the balloon becomes
negatively charged
Rub a plastic straw on your cotton shirt and the straw becomes
negatively charged.
When mylar and paper come into contact, which material gives protons to the other?
neither
When nylon and amber come into contact, which material takes protons from the other?
neither
A negatively charged rod is brought near a metal conductor. The neutrons in the metal conductor experience a force of
no force at all
A positively charged rod is brought near a metal conductor. The neutrons in the metal conductor experience a force of
no force at all
A conductor differs from an insulator in that a conductor
none of these
When mylar and paper come into contact, which material gives electrons to the other?
paper
Strip electrons from an atom and the atom becomes a
positive ion
Rub a balloon with fur and the fur becomes
positively charged
The atomic number of an element gives the number of ____________ in a single atom of that element.
protons