True or False
Protons are easily moved around an atom.
True or False?
False
Complete the sentence using the words amount or distance. Each word can only be used once.
The strength of electric force depends on the _______ of electric charges on the particles and the ________ between them.
Amount
Distance
A positive charge of 5.0 x 10-4 C is in an electric field that exerts a force of 2.5 x 10-4 N on it. What is the magnitude of the electric field at the location of the charge?
a. 0.5 N/C
b. 3.6 N/C
c. 2.5 N/C
d. 5 N/C
a. 0.5 N/C
Atoms are ______ in electric charge because they have the same number of electrons as protons.
a. Neutral
b. Positive
c. Negative
d. Ionic
a. Neutral
Electrons are negative and can move, while protons are positive and stay in place.
True or false?
True
The process of energy transfer that occurs when there is movement of heat or electricity through the direct contact of materials is called ________.
Conduction
What is the magnitude of the electric field intensity at a point in the field where an electron experiences a 1.0- newton force (electrons have a charge of -1.6 x 10-19 C)?
a. 6.3 x 1018 N/C
b. 1.0 N/C
c. 9.1 x 10-31 N/C
d. 1.2 x 10-43 N/C
e. 1.6 x 10-19 N/C
a. 6.3 x 1018 N/C
The object that gives up electrons becomes _______ charged.
Positively
_______ occurs when there is direct contact between materials that differ in their ability to give up or accept electrons.
Conduction
A hollow metallic sphere of radius 10 cm is given a charge of 3.2 x 10-9 C. What will be the electric intensity at a point 4 cm from the center?
a. 9 x 10-9 N/C
b. 2.8 x 10-5 N/C
c. 0 N/C
d. 28 x 10-7 N/C
c. 0 N/C
Which one of the following is the appropriate option for fill in the blank: force, friction, work?
One way electric charges can build up is through _____ between materials that differ in their ability to give up or accept electrons.
Friction
Which one of the following is the correct option for fill in the blank: electricity, discharge, current?
A sudden flow of electrons from one charged object to another is called static _____.
Discharge