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72 questions
____ 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
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
This is a push or a pull
Force
Electric Force
Electric Charge
Electric Field
This is the study of the behavior of electric charges, including how charge is transferred between objects
Electric Charge
Static Electricity
Electricity
Conduction
This is the transfer of charge without contact between materials.
Friction
Conduction
Induction
Force
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
What are the three parts of atoms?
Nucleus, neutral, and proatom
Neutron, Protons, electrons
Neutral, positive, negative
Ion, negatron, proton
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
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
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
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
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
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
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
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
This type of charging occurs without the two objects touching.
Friction
Conduction
Induction
None of these
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
True or False. Static charge is the buildup of charge in an object and staying there
True
False
True or False. Objects tend to be neutral. They can become charged by gaining or losing protons
True
False
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
True or False. When objects do release this charge, this is called static discharge, which can occur with sparks or lightening.
True
False
Examples of this type of material include plastic, rubber, and glass.
Conductor
Insulator
Neither
Examples of this type of material include metals like aluminum, copper, and silver
Conductor
Insulator
Neither
This type of material allows for the easy flow of electricity
Conductor
Insulator
This type of material resists the flow of electrons, thus resists the flow of electricity.
Conductor
Insulator
Neither
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
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
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
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
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
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
___: The smallest particle of an element
Atom
Isotope
Nucleus
Proton
___: Anything that takes up space and has mass
Atom
Matter
Mass
Stuff
__: A negatively charged subatomic particle that is found in the space outside the nucleus of an atom
Nucleus
Atom
Proton
Electron
___: A positively charged subatomic particle that is found in the nucleus of an atom
Nucleus
Electron
Proton
Cation
One of the first people to state that matter is made up of atoms was
Democritus
Aristotle
Dalton
Rutherford
What was Rutherford’s model of an atom called?
Electron Cloud
Nuclear Model
Plum Pudding Model
Planetary Model
What is Bohr’s model of an atom called?
Electron Cloud
Nuclear Model
Plum Pudding Model
Planetary Model
There are the same number of these two subatomic particles in a neutral atom
Electrons
Nucleus
Neutrons
Protons
The atomic number is the same as this or these particle(s)
Protons
Neutrons
Isotopes
Nucleus
What is A?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
What is B?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
What is C?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
What is D?
Symbol
Element/Name
Mass Number or Atomic Mass
Atomic Number
How many protons does Fluorine have?
10
9
18
19
How many electrons does Fluorine have?
10
9
18
19
How many neutrons does Fluorine have?
10
9
18
19
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