ELECTRICITY QUESTIONS
When 2 objects, each having more electrons than protons are brought close together they will:
  1. attract
  2. repel
  3. have no effect on
  4. orbit

    each other.

 

repel
Friction between hair or fur and a rubber balloon will cause:
  1. electrons
  2. protons
  3. neutrons
  4. atoms

    to move from the hair to the balloon.

electrons
The outer charges orbiting the center of the atom right are:
  1. neutrons
  2. electrons
  3. protons
  4. plasma

electrons 
Objects can be charged by:
  1. rubbing them
  2. suspending them
  3. placing them near generators
  4. heating them

rubbing them causes electrons to attach to the balloon 
A charged object will always:
  1. attract
  2. repel
  3. move around
  4. have no effect on

    an uncharged object.

 attract
Like charged objects will:
  1. repel
  2. attract
  3. move around
  4. have no effect on

    each other.

 repel
What are the three dots on the outer rings of the picture at the right?:
  1. electrons
  2. atoms
  3. protons
  4. neutrons

electrons 
Electrons in an atom are held very loosely unlike the nucleus.  Materials which allow electrons to move freely through them are:
  1. conductors
  2. insulators
  3. resistors
  4. capacitors
conductors 
Which of these would not be a good conductor of an electrical current:
  1. iron
  2. paper clip
  3. salt water
  4. rubber

 
How does rubbing and friction cause static electricity?:
  1. Friction heats the materials causing electricity.
  2. Rubbing displaces atoms causing sparks to fly.
  3. Rubbing strips electrons off atoms causing materials to be plus or minus charged.
  4. Rubbing causes the protons to reject the atoms.

number 3 
This animations shows:
  1. electrons moving from atom to atom
  2. static electricity in silicon
  3. proton exchange between atoms
  4. splitting of atoms
 electrons moving from atom to atom
The device at right is an:
  1. ammeter
  2. electroscope
  3. electrostatic generator
  4. galvanometer

 electrosope
When you introduce a static charge to the metal foil on top, the aluminum foil strips will:
  1. cling together because they'll have different charges.
  2. fly apart because they have the same charge.
  3. not move because of electromotive energy.
  4. spin in circles because of the static.
 fly apart - they have the same charge
The device at right is a/an:
  1. ammeter
  2. galvanometer
  3. electroscope
  4. radiometer
galvanometer 
The device pictured here is a/an:
  1. electromagnet
  2. galvanometer
  3. voltmeter
  4. generator
 galvanometer as well
The instrument hanging inside the cardboard tube is a current detector.  It probably is a:
  1. battery
  2. photoelectric cell
  3. resistor
  4. compass
What is the most likely thing you'd connect to the 2 metal tabs at the bottom and left above:
  1. battery
  2. electromagnet
  3. aluminum chloride paste
  4. compass
What is happening in this illustration?
  1. The balloon is pushing the balloon away because it has an opposite charge
  2. The balloon is attracting the tin can because they have the same charge
  3. The balloon is attracting the tin can because it has an opposite charge
  4. The balloon is working as a galvanometer 
 number 3
This animation does NOT show that:
  1. electrons are moving away from the carbon rod and attaching to the can exterior
  2. protons are moving away from  the carbon rod to the zinc can
  3. a flow of electrons is being produced as electrons move from the zinc can to the top of the carbon rod
  4. a carbon wire is linking the positive and negative terminals of the battery
number 2 
This animation shows that:
  1. the magnet is inducing an electric current  in the copper wire
  2. static electricity is being produced
  3. there is no measurable current flowing in the copper wire
  4. the north and south poles of the magnet are attracting each other

 

 magnet is inducing an electric current in the wire
This device created by Faraday is:
  1. a galvanometer
  2. an electromagnet
  3. a motor
  4. a generator

 

 generator
Electricity Test Part 2