Honors Physics Chapter 16 Static Electricity review

For two particles such as protons with both electric and gravitational forces, the a) electric forces will be stronger b) gravitational forces will be stronger c) electric and gravitational forces will be the same d) strength of the force depends on the object

A

While many properties are similar, one important difference between electric and gravitational forces is that unlike gravity, electric charge a) can be transferred b) operates at a distance c) obeys an inverse-square law d) remains constant over time

A

an important difference between gravitational force and electric force is that gravitational force is always ____ a) attractive b) repulsive c) stronger d) downward

A

test review 10 in the charging of a solid, charge transfer is accompanied by the displacement of a) electrons only b) protons only c) both electrons and protons d) neither electrons or protons

A

the force that charge qA exerts on charge qB is ____ the force that charge qB exerts on charge qA a) opposite and equal to b) opposite and greater than c) opposite and less than d) the same as

A

The charge on a rubber rod that has been rubbed with wool is a) positive b) negative c) neutral d) unchanged

B

Two electric charges with the same sign a) attract each other b) repel each other c) have no effect on each other d) annihilate each other

B

air can become a conductor when it becomes a) dry b) a plasma c) discharged d) wet

B

test review 4 which procedure will double the force between 2 point charges a) doubling the distance between the charges b) doubling the magnitude of one charge c) halving the distance between the charges d) halving the magnitude of one charge

B

transferring charge by touching one object to another is called a) charging by induction b) charging by conduction c) charging by friction d) charging by transfer

B

when an electroscope is charged, its leaves separate because _____ a) unlike charges repel b) similar charges exert force on each other over a distance c) positive charges spread over the metal leaves d) magnetic forces spread the metal leaves apart

B

Test review 2 a glass rod is given a positive charge by rubbing it with silk. the rod has become positive by a) gaining electrons b) gaining protons c) losing electrons d) losing protons

C

all electric charges are multiple of the charge on a(n) a) columb b) neutron c) electron d) atom

C

if a negatively charged rod is brought near a negatively charged electroscope a) there will be no effect b) the leaves will fall c) the leaves will spread farther apart d) the electroscope will become positively charged

C

test review 3 which part of an atom is most likely to be transferred as a body acquires a static electric charge a) proton b) neutron c) electron d) positron

C

test review 9 when a rubber rod is rubbed with fur, the rod becomes negatively charged due to the transfer of a) electrons to the fur b) protons to the fur c) electrons to the rod d) protons to the rod

C

the SI unit of electric charge is the a) volt b) watt c) columb d) ampere

C

charging by induction a) creates charge by transferring charges from one object to another b) results in a permanent change c) creates charges within an object d) separates charges within an object

D

test review 8 which procedure will give an electroscope a positive charge a) touching the electroscope with a neutral object b) bringing a positively charged object near the electroscope c) touching the electroscope with a negatively charged object d) touching the electroscope with a positively charged object

D

the electric force between two charges is ______ to the square of the distance between them a) not related b) equal c) directly proportional d) inversely proportional

D

when wool and plastic are touched together, the plastic becomes a) positively charged because it loses electrons to the wool b) negatively charged because it loses electrons to the wool c) positively charged because it gains electrons from the wool d) negatively charged because it gains electrons from the wool

D

insulator

a material that does not allow for electricity to flow through it easily

question 5

away from out positive toward negative

question 9/10

electrons are the only particle that moves a negative charge leads to a gain in electrons

question 1

electroscope charge of rod knob is going opposite of rod leaves are going to be the same charge of rod

question 8

electroscope positive change remain positive b) near d) touching

question 7

electrostatic force columb's law (see procedures above)

question 2

if a rod becomes positive it loses electrons if a rod becomes negative it gains electrons electrons are the only thing that moves

conductor

material that allows electricity to easily flow through it

columb's law calculator procedures

multiply coefficients multiply exponents move exponent enough for significant figures divide (look for different sign answers, hopefully nothing terrible)

Q 2, 3, 9, 10

unlike charges attract like charges repel only electron move plus away minus inward

question 6

unlike charges attract like charges repel look at the way the arrows go

question 4

what would it take to double the force from columb's law equation radius/distance

test is going to contain

10 mcq like test review 2 definitions: conductor and insulator (defined in next cards) 3 problems columb's law (see procedures card above) reading paragraph 13 study guide mcqs (all in here)