WorksheetsPhysical Science chapter 13
Total questions: 35
Worksheet time: 19mins
An electric field in which the strength is evenly distributed throughout, as between plates of opposite charge.
magnetocline
isogonic field
uniform field
agonic field
Causing a charge by bringing a charged object near, but not touching, a neutral object is charging by:
induction
convection
radiation
conduction
The law that states that the total charge is the same before and after an interaction:
law of conservation of charge
law of electric forces
law of electric charge
law of conservation of electricity
In a lightning bolt, what is the upward flow of charge from the ground called?
dart leader
return stroke
positive streamer
stepped leader
An object that has no overall electrical charge because the positive & negative charges are balanced:
grounded
positive
negative
neutral
An excess of electrons causes a ______ charge.
grounded
positive
negative
neutral
Electric charges are considered ____ electricity.
direct
storable
contact
static
t/f the study of the nature, behavior, & uses of static electricity & related phenomena is electricty
true
false
trae
fulese
t/f the flow of charge from one place to another is current.
true
false
tralse
frue
t/f when a charged rod is touched to the top of an electroscope, charge is transferred from the rod to the electroscope through induction.
true
false
tralse
fulue
How do opposite charges react to each other?
attract
repel
twist
neutralize
What protects buildings from lightning strikes?
Leyden jar
lightning rod
electroscope
Van de Graaff generator
Which is an early device used to store an electric charge?
electroscope
Leyden Jar
Van de Graaff generator
lightning rod
What is a simple device used to detect small electric charges?
Leyden Jar
electroscope
capacitor
electrostatic generator
t/f the process of diverting unwanted electrical charge directly into the earth is called grounding.
true
false
falue
tralse
What term refers to the interactions between electrons & other charged particles?
electricity
electroscope
static charges
capacity
What is the SI unit of charge?
coulomb
watt
volt
amperes
t/f the hairs of your head stand up & apart from each other when touching a Van de Graaff generator due to like charges attracting.
true
false
What is the general term for a modern device used to store electric charge?
Leyden jar
electroscope
capacitor
Van de Graaff generator
What term means "dry writing?"
xerography
elecrostatics
photocopier
t/f induction can be made permanent by combining it with grounding.
true
false
t/f lightning rods make use of the process of grounding
true
false
Who discovered that lightning is caused by static electricity in clouds?
Ben Franklin
William Gilbert
Thales of Miletus
Albert Einstein
t/f the property of protons & electrons that allows them to attract & repel other charged particles is electric charge.
true
false
What is a deficiency of electrons?
negative
positive
neutral
grounded
What is the region around a charged object in which other objects are attracted or repelled?
force line
electric field
uniformity field
static field
If 2 electrically charged objects attract each other with a force of 1.0 N when they are 5.0 cm apart, what will be the force when they are 1.0 cm apart?
25 N
30 N
15 N
10 N
If 2 charged objects have a 125 N force between them when they are 3.00 m apart, what will the force be if you increase the distance to 15.0 m?
5.00 N
15.0 N
30.0 N
45.0 N
t/f charging by induction produces two charges instead of one.
true
false
tralse
t/f only conduction follows the law of conservation of charge.
true
false
falue
Which type of current requires electrolytes?
current in gases
currents in liquids
currents in solids
currents in wires
Who built the first electrostatic generator?
Otto von Guericke
Robert J. Van de Graaff
William Gilbert
Ben Franklin
t/f the principle that electric charge always moves to the outside of the charged object is what makes a vehicle a safe shelter in a thunderstorm.
true
false
tralse
falue
Who was one of the first scientists to discover that electric charges can be stored?
Otto von Guericke
Robert J. Van de Graaff
Pieter van Musschenbroek
Benjamin Franklin
What is a device used to produce static electricity?
electrostatic generator
capacitor
Leyden jar
electroscope
