Gen Physics

Question 1

Structure of The Atom

Answer 1

Protons, neutrons, and electrons
Proton and neutron in nucleus; electrons orbit nucleus

Question 2

is the measure of ease at which an electric charge moves through a material

Answer 2

Conductivity

Question 3

are materials that readily allow the flow of charges through them.

Answer 3

Conductors

Question 4

are materials that resist the flow of charges

Answer 4

Insulators

Question 5

are intermediate between conductors and insulators

Answer 5

Semiconductors

Question 6

offer practically no resistance to the flow of charges below some critical temperatures.

Answer 6

SuperConductors

Question 7

results when two different materials are rubbed together.

Answer 7

Charging by Friction

Question 8

 refers to the tendency of an atom to become negatively charge.

Answer 8

Electron Affinity

Question 9

Requires a physical contact between a charging body and a neutral body.

Answer 9

Charging by conduction

Question 10

Charge acquired by the neutral body is the same as the charge of the charged body

Answer 10

Charging by conduction

Question 11

A neutral body becomes positively charged when charged by a positively charged body. Likewise, it becomes negatively charged when charged by a negatively charged body.

Answer 11

Charging by conduction

Question 12

A neutral body may also be charged w/o physical contact with a charged body.

Answer 12

Charging by induction

Question 13

The body to be charged is bought near to the charging body.

Answer 13

Charging by induction

Question 14

The negative charges on the neutral body are attracted toward the charging body if the latter body is positive.

Answer 14

Charging by induction

Question 15

According to the conservation of charge “The total charge of an isolated system remains _______.”

Answer 15

constant

Question 16

Charges can neither be created nor destroyed

Answer 16

Conservation of charge

Question 17

Coulomb showed in one of his experiments that when a sphere with an initial charge qo is brought in contact with an identically uncharged sphere, they _____________ the total charge.

Answer 17

equally share

Question 18

If the spheres are not identical, they share the total charge according to their ______, with quantity of the charge directly proportional to their radii.

Answer 18

radii

Question 19

If the spheres are not identical, they share the total charge according to their radii, with quantity of the charge ________ proportional to their radii.

Answer 19

directly

Question 20

In any charging process, charges can merely be transferred from one body to another.

Answer 20

Conservation of charge

Question 21

qo

Answer 21

initial charge

Question 22

q

Answer 22

final charge

Question 23

r

Answer 23

radius, distance

Question 24

“The magnitude of the electric force between two charged particles is directly proportional to the product of the magnitude if the charges (q) and inversely proportional to the square of the distance (r) between them.”

Answer 24

Coulumb’s Law

Question 25

Coulumb’s Law “The magnitude of the electric force between two charged particles is directly proportional to the product of the magnitude if the charges (q) and _________ to the square of the distance (r) between them.”

Answer 25

inversely proportional

Question 26

Fe

Answer 26

The magnitude of the electric force (N)

Question 27

q1 and q2

Answer 27

are the charges in coulumbs (c)

Question 28

r

Answer 28

The distance in meters (m)

Question 29

K

Answer 29

The coulumb’s constant

Question 30

The coulomb’s constant

Answer 30

( 9x10^9 N∙m^2/c^2)

Question 31

The force magnitude F is always _______.

Answer 31

positive

Question 32

The vectors representing the force that is q1 exerts on q2 and vice versa on printing toward each other for _______ and away from each other for repulsion

Answer 32

attraction

Question 33

The vectors representing the force that is q1 exerts on q2 and vice versa on printing toward each other for attraction and away from each other for ________.

Answer 33

repulsion

Question 34

G

Answer 34

universal gravitational constant

Question 35

universal gravitational constant

Answer 35

(6.674 x 10^-11N∙m^2/kg^2)

Question 36

Similarities of Coulumb’s law and Newtons Law

Answer 36

• Follow the inverse square law for distance.
• Are also proportional to the product of the quantity that causes the force (mass and charge).
• Are conservative and nonconstant.

Question 37

Difference of Coulumb’s law and Newtons Law

Answer 37

• Gravitational force is only an attractive force, while the electric force maybe attractive or repulsive.
• The gravitational force, in general, is much weaker.