PHYSICS

Question 1

• Requires a physical content between a charging body and a neutral body.

Answer 1

Charging by conduction

Question 2

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

Answer 2

Charging by conduction

Question 3

• 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 3

Charging by conduction

Question 4

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

Answer 4

Charging by induction

Question 5

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

Answer 5

Charging by induction

Question 6

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

Answer 6

Charging by induction

Question 7

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

Answer 7

constant

Question 8

Charges can neither be created nor destroyed.

Answer 8

Conservation of charge

Question 9

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 9

equally share

Question 10

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 10

radii

Question 11

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 11

directly

Question 12

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

Answer 12

Conservation of charge

Question 13

qo

Answer 13

Initial Charge

Question 14

q

Answer 14

final charge

Question 15

r

Answer 15

radius, distance

Question 16

“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 16

Coulumb’s Law

Question 17

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 17

inversely proportional

Question 17

FE

Answer 17

The magnitude of the electric force (N)

Question 18

q1 and q2

Answer 18

are the charges in coulumbs (c)

Question 19

r

Answer 19

The distance in meters (m)

Question 20

K

Answer 20

The coulumb’s constant

Question 21

The coulumb’s constant

Answer 21

(~ 9x109 N∙m2/c2)

Question 22

The force magnitude F is always _______.

Answer 22

positive.

Question 23

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 23

attraction

Question 24

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 24

repulsion

Question 25

G

Answer 25

universal gravitational constant

Question 26

universal gravitational constant

Answer 26

(~6.674 x 10-11N∙m2/kg2)

Question 27

Similarities of Coulumb’s law and Newtons Law

Answer 27

• 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 28

Difference of Coulumb’s law and Newtons Law

Answer 28

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