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- 1. Multiple Choice
____ is a field in a region of space that exerts electric force on charged particles in a field produced by electric charges or by changing magnetic fields
Electric Field
Field
Electric Charge
Electric Force
- 2. Multiple Choice
This is a law stating that the total electric charge in an isolated system is constant; electric charge is never created or destroyed
Law of Conservation of Charge
Law of Equal Charges
Law of Conduction
Law of Static Charges
- 3. Multiple Choice
This is a push or a pull
Force
Electric Force
Electric Charge
Electric Field
- 4. Multiple Choice
This is the study of the behavior of electric charges, including how charge is transferred between objects
Electric Charge
Static Electricity
Electricity
Conduction
- 5. Multiple Choice
This is the transfer of charge without contact between materials.
Friction
Conduction
Induction
Force
- 6. Multiple Choice
Which of the following statements are true about scientific models?
The more specific the better. Models need to have labels to make them clear
They are very useful for looking at phenomena
They help create mental pictures
All of the above
- 7. Multiple Choice
What are the three parts of atoms?
Nucleus, neutral, and proatom
Neutron, Protons, electrons
Neutral, positive, negative
Ion, negatron, proton
- 8. Multiple Choice
What does the law of electric charges say about two objects that each have a positive charge?
Objects with the same charge have no effect on each other
Objects with the same charge attract each other
Objects with the same charge repel each other
Objects with the same charge both attract and repel each other
- 9. Multiple Choice
What does the law of electric charges say about two charges in which one is a negative charge and the other is a positive charge?
Objects with opposite charges have no effect on each other
Objects with opposite charges attract each other
Objects with opposite charges repel each other
Objects with opposite charges both attract and repel each other
- 10. Multiple Choice
What does the law of electric charges say about two charges in which one is positive and the other is neutral?
Charged objects and neutral objects have no effect on each other
Charged objects always shock and electrocute neutral objects
Charged objects repel neutral objects
Charged objects attract neutral objects
- 11. Multiple Choice
What is a neutral atom and how does it become charged?
A neutral atoms has no charge to it
A neutral atom is neither positive nor negative
A neutral atom becomes charged by gaining or losing electrons
All of these responses
- 12. Multiple Choice
Two charged objects repel each other and start to move farther away. What happens to the elctric force on both objects as they move farther away?
Nothing
The force between them gets stronger, pushing them harder the further apart they are
The force between them gets weaker; the electric force gets smaller as they get further away
The force between them never changes
- 13. Multiple Choice
What are arrows or vectors (in relation to electric charges)?
They point at something
They are two completely different things
They represent the forces on objects placed in an electric field
They represent electricity in an electric field
- 14. Multiple Choice
When you take your clothes out from the dryer, sometimes there is static electricity on the clothes. This is caused by:
Induction
Conduction
Friction
None of the above
- 15. Multiple Choice
An example of this type of charging is like when the hair on the wig stands up when it is placed on the Van de Graaff generator when it is turned on:
Induction
Conduction
Friction
None of the above
- 16. Multiple Choice
This type of charging occurs without the two objects touching.
Friction
Conduction
Induction
None of these
- 17. Multiple Choice
This type of charging occurs when two things are rubbed together because when this happens, electrons from one objects are rubbed off to the other. This usually makes one object positive and the other negative
Friction
Conduction
Induction
None of these
- 18. Multiple Choice
True or False. Static charge is the buildup of charge in an object and staying there
True
False
- 19. Multiple Choice
True or False. Objects tend to be neutral. They can become charged by gaining or losing protons
True
False
- 20. Multiple Choice
True or False. Objects want to hold a charge for as long as they can because objects don't want to be neutral.
True
False
- 21. Multiple Choice
True or False. When objects do release this charge, this is called static discharge, which can occur with sparks or lightening.
True
False
- 22. Multiple Choice
Examples of this type of material include plastic, rubber, and glass.
Conductor
Insulator
Neither
- 23. Multiple Choice
Examples of this type of material include metals like aluminum, copper, and silver
Conductor
Insulator
Neither
- 24. Multiple Choice
This type of material allows for the easy flow of electricity
Conductor
Insulator
- 25. Multiple Choice
This type of material resists the flow of electrons, thus resists the flow of electricity.
Conductor
Insulator
Neither
- 26. Multiple Choice
At which point is the electric field around the positive charge the strongest?
Point A
Point B
Point C
They will all have the same electric force
- 27. Multiple Choice
At which point is the electric field around the positive charge the weakest?
Point A
Point B
Point C
They will all have the same electric force
- 28. Multiple Choice
Two positively charged objects (Object A and Object B) are 8 inches apart. When a positively charged ball is hung at an equal distance between the two positively charged objects, the ball moves toward Object B (see picture ). What can you conclude about the relative amount of positive charge on Object A and Object B?
Object A has more change than Object B
Object B has more charge than Object A
The two positive charges just cause a ringing bell phenomenon because they both push on it equally
- 29. Multiple Choice
Look at the picture. Your physics teacher has prepared the room for the class's entry by suspending several inflated balloons from the ceiling. Upon entering the physics room, you observe two balloons being pushed away from each other as shown at the right. The repulsion of these balloons from one another provides evidence that ______.
both balloons are charged with the same type of charge
Both balloons are charged with the opposite type of charge
Only one of the balloons is charged; the other is neutral
At least one of the balloons is charged; the other is either neutral or charged
- 30. Multiple Choice
Look at the picture. On one occasion, the following charge interactions between balloons A, B and C are observed. In this case, it is known that balloon B is charged negatively. Based on these observations, what can you conclusively confirm about the charge on balloon A and C for this situation.
The charge of balloon A is ____?
Positive
Negative
Neutral
Not enough information provided
- 31. Multiple Choice
Look at the picture. On one occasion, the following charge interactions between balloons A, B and C are observed. In this case, it is known that balloon B is charged negatively. Based on these observations, what can you conclusively confirm about the charge on balloon A and C for this situation.
The charge of balloon C is ____?
Positive
Negative
Neutral
Not enough information provided
- 32. Multiple Choice
___: The smallest particle of an element
Atom
Isotope
Nucleus
Proton
- 33. Multiple Choice
___: Anything that takes up space and has mass
Atom
Matter
Mass
Stuff
- 34. Multiple Choice
__: A negatively charged subatomic particle that is found in the space outside the nucleus of an atom
Nucleus
Atom
Proton
Electron
- 35. Multiple Choice
___: A positively charged subatomic particle that is found in the nucleus of an atom
Nucleus
Electron
Proton
Cation
- 36. Multiple Choice___: The measure of the amount of matter in an objectMassMatterStuffAtoms
- 37. Multiple Choice___: The dense, positively charged mass located in the center of an atomProtonNucleusElectronNeutron
- 38. Multiple Choice___: A unique number for each element that equals the number of protons in an atom of that elementMass NumberAtomic NumberAtomic Mass UnitMass
- 39. Multiple Choice___: The sum of the number of protons and neutrons in the nucleus of an atomMass NumberAtomic NumberAtomic Mass UnitMass
- 40. Multiple Choice___: Atoms of a given element that have different numbers of neutrons and different mass numbersMass NumberMassAtomIsotope
- 41. Multiple Choice___: An arrangement of elements in columns, based on a set of properties that repeat from row to rowPeriodic TableMass NumberAtomic Mass UnitAtomic Number
- 42. Multiple Choice___: One twelfth the mass of a carbon-12 atom; This is the unit for average mass of a particular atomPeriodic TableMass NumberAtomic Mass UnitAtomic Number
- 43. Multiple Choice___: An electron that is in the highest occupied energy level of an atomProtonNucleusElectronValence Electron
- 44. Multiple Choice
One of the first people to state that matter is made up of atoms was
Democritus
Aristotle
Dalton
Rutherford
- 45. Multiple ChoiceDalton's model of an atom is best described as:A solar systema plum puddinga solid spherean electron cloud
- 46. Multiple ChoiceAccording to Dalton’s atomic theory, an atomIs made of smaller particlesis a particle with a positive chargemakes up all elementsis in constant motion
- 47. Multiple ChoiceWhy must indirect evidence be used to study the structure of an atom?Atoms are too small to observe directlyIt is too difficult to isolate one single atom to observeatoms are invisibleindirect evidence is not used, direct evidence is used
- 48. Multiple ChoiceWho provided the first evidence that atoms contain subatomic particles?DaltonRutherfordThomsonBohr
- 49. Multiple ChoiceIn Thomson’s experiment, why was the glowing beam repelled by a negatively charged plate?The beam was neutralThe beam was positiveThe beam was negativeThe beam had no charge
- 50. Multiple ChoiceThomson disproved one of Dalton’s principles. Which one did he prove wrong?That all atoms were indivisibleThat all atoms were invisibleThat atoms of one element are different from atoms of another elementThat all elements are composed of atoms
- 51. Multiple ChoiceWhat was Thomson's Model called?Electron CloudNuclear ModelPlum Pudding ModelPlanetary Model
- 52. Multiple ChoiceRutherford discovered more about atoms with his gold foil experiment using a radioactive source of alpha particles. Most alpha particles pass through a thin layer of gold without deflection because gold atoms:Are filled with positively charged matterHave no overall chargeHave a negatively charged nucleusHave a dense nucleus surrounded by space
- 53. Multiple Choicewhat did Rutherford discover about atoms?Atoms have negative electronsAtoms have neutral neutronsAtoms have a positive nucleusAtoms have energy levels
- 54. Multiple Choice
What was Rutherford’s model of an atom called?
Electron Cloud
Nuclear Model
Plum Pudding Model
Planetary Model
- 55. Multiple ChoiceBohr modified or revised Rutherford’s model of an atom. What did his model focus on?ElectronsProtonsNeutronsNucleus
- 56. Multiple ChoiceBohr furthered and improved Rutherford’s model of an atom. He believed and stated all of the following except which statement?Rutherford did not explain how electrons orbited or moved around the nucleus and thus Bohr proposed that electrons moved around the nucleus in orbits of fixed sizes and energiesBohr explained how electrons gain or lose energy as the move up or down levelsBohr explained that electrons have the ability to stay in between levels if they are in between energies for orbit levelsBohr believed that each electron in an atom has specific amount of energy
- 57. Multiple Choice
What is Bohr’s model of an atom called?
Electron Cloud
Nuclear Model
Plum Pudding Model
Planetary Model
- 58. Multiple ChoiceWhat is the main difference between Bohr's model of the atom and the atomic theory that is currently accepted?Bohr assumed that electrons traveled in orbits around the nucleus. Current atomic theory assumes electrons do not travel in fixed pathsBohr assumed that electrons traveled anywhere around the nucleus. Current atomic theory assumes electrons travel in fixed pathsBohr assumed that electrons do not travel in fixed paths but instead stay in a general area around the nucleus at a particular energy level. Current atomic theory assumes that electrons actually travel in fixed orbits around the nucleus and rarely move
- 59. Multiple ChoiceWhat is an electron cloud model?A visual model that depicts electrons embedded in a sphere of positive electric chargeA visual model that show electrons move in spherical orbits at fixed distances from the nucleusA visual model of the most likely locations for electrons in an atom. The cloud is denser at those electrons where the probability of finding an electron is highA visual model showing the exact locations for electrons in an atom. The cloud shows the empty space between the nucleus and the electrons
- 60. Multiple ChoiceWhich particle or part of the atom listed is the most massive?ProtonElectronNeutronsNucleus
- 61. Multiple ChoiceAll atoms of an element have the sameMass numberAtomic NumberNumber of isotopesNumber of neutrons
- 62. Multiple ChoiceThe number of neutrons in an atom equals the:Mass number minus atomic numberatomic number plus number of electronsmass number plus atomic numberatomic number minus mass number
- 63. Multiple Choice
There are the same number of these two subatomic particles in a neutral atom
Electrons
Nucleus
Neutrons
Protons
- 64. Multiple Choice
The atomic number is the same as this or these particle(s)
Protons
Neutrons
Isotopes
Nucleus
- 65. Multiple ChoiceThe mass number is determined by which two particles?ProtonsNeutronsElectronsNucleus
- 66. Multiple Choice
What is A?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
- 67. Multiple Choice
What is B?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
- 68. Multiple Choice
What is C?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
- 69. Multiple Choice
What is D?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
- 70. Multiple Choice
How many protons does Fluorine have?
10
9
18
19
- 71. Multiple Choice
How many electrons does Fluorine have?
10
9
18
19
- 72. Multiple Choice
How many neutrons does Fluorine have?
10
9
18
19
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