My Professor gave us 10 Chapters of Physics homework to do in a week! While I have gotten most of it done, there are a few questions I was unable to find answers to. Is there any way you can help me out a little bit?

An American 60 Watt light bulb is designed to operate at 110 Volts. A European 60 Watt light bulb is designed to operate at 220 Volts. Which bulb has the higher resistance?

(a) The American bulb(b) The European bulb(c) Both have the same resistance

Electrons are held in atoms by:

(a) The gravitational force
(b) The electric force
(c) The strong nuclear force
(d) The weak nuclear force
(e) Atomic gnomes

A generator uses magnetic induction to:

(a) Convert mechanical energy into heat
(b) Convert heat into mechanical energy
(c) Convert mechanical energy into electrical energy
(d) Convert electrical energy into current
(e) Convert electric current into voltage

A light bulb is connected to the terminals of the battery and the light glows. Which statement is true?

(a) The wires carry electric current because the wires have more electrons than protons
(b) More current leaves the battery than enters the battery
(c) Less current enters the light bulb than leaves the light bulb
(d) The light bulb filament does not acquire an electric charge
(e) The current decreases steadily as it flows around the circuit

A quantum of light is called a

(a) Proton(b) Neutron(c) Electron(d) Fermion(e) Photon

According to the uncertainty principle:

(a) It is impossible to measure the energy of a subatomic particle.
(b) If we measure an electron’s speed more precisely, we can determine its position more precisely.
(c) If we measure an electron’s speed more precisely, we can determine its position less precisely.
(d) The entropy or disorder of the universe is constant.

Different isotopes of the same element have different numbers of:

(a) Neutrons(b) Protons(c) Electrons(d) Photons(e) Neutrinos
When you comb your hair, the hair becomes positively charged. What else becomes charged?

(a) Your head becomes negatively charged
(b) The comb becomes negatively charged
(c) The comb becomes positively charged
(d) Your head becomes positively charged
(e) Nothing. Only your hair is charged.

Which is true about a transformer?

(a) A transformer can operate more efficiently on DC input than AC
(b) A transformer requires a strong permanent magnet
(c) The output voltage is always lower than the input voltage because of energy loss
(d) A transformer only works for AC input
(e) A transformer only works for DC input

There are countless freely moving electrons in a penny, and they all repel each other. Why don’t they fly out of the penny?

(a) They are attracted to the equally countless number of protons in the penny.
(b) The repulsive electrical force is balanced by an attractive gravitational force between the electrons
(c) Electrons are not permitted to be outside atoms due to the quantum uncertainty principle
(d) There is a magnetic field on the surface of the penny that effectively confines them
(e) The penny is electrically insulated