lesson #26

lesson #26
E.Q:What causes the arrangement of an electric field to change?

Electric Field

Multiple Choice

Electric charges can be....

• Positive and Negative

• sweet and salty

• Like or Hate

• Insecure

Multiple Choice

The area of electric force around an electrically charged particle is called an...

• Electric Force

• Electric Field

• Electricity

• Attract and Repel

Multiple Choice

The electric field surrounding a positively charged object is

• Away from the charge
• Toward the charge

Multiple Choice

TRUE or FALSE: The separation of distance between two charges is equal to  $$\sqrt{\frac{k\left|q_1q_2\right|}{F_E}}$$ . 

 

• True

• False

Multiple Choice

When a balloon is rubbed on clothes it acquires a charge by ___________.

• Induction

• reduction

• friction

• concuction

Multiple Choice

TRUE or FALSE: According to Coulomb's Law, the greater the separation of distance between two charges the greater the magnitude of the electrostatic force.

• True

• False

Multiple Choice

TRUE or FALSE: The mass of a single electron is equal to 9.109x10^-31 C.

• True

• False

Multiple Choice

TRUE or FALSE: The net force due to different charges around a single charge can be determined using superposition principle.

• True

• False

Multiple Choice

What happens to the field strength as the distance between two charged objects decreases?

• the strength stays the same

• the strength increases

• the strength decreases

• the strength fluctuates between positive and negative

Multiple Choice

What does the Law of Conservation of Charge state?

• like charges repel and opposites attract

• positive charge fields point away from a charge; negative points toward

• charges cannot be created nor destroyed, only transferred

Multiple Choice

Where can an electric field be found?

• below a force field

• in a gravitational field

• in the space surrounding a charged object

• outside of a magnetic field

Multiple Choice

Electrical field lines of a negatively charged object flow _______________.

• Inwards

• Outwards

• Clockwise

• Counter-Clockwise

Multiple Choice

The unit of electric field is not equivalent to ______.

• N/C

• J/C

• V/m

• J/Coulomb.meter

Multiple Choice

Which statement best describes the electric fields in the image?

• The charges are neutral.

• Both charges are negative, so the field lines are alike.

• The field lines move toward a positive charge and away from a negative charge.

• The field lines move away from a positive charge and toward a negative charge.

Multiple Choice

TRUE or FALSE: The electric field lines for a positive charge is always directed away from the charge.

• True

• False

Multiple Choice

Q_A and Q_B are two charges creating an electric field. Based on the electric field lines, we can conclude that _____________.

• Q_A and Q_B are both positive

• Q_A and Q_B are both negative

• Q_A is positive and Q_B is negative

• Q_A is negative and Q_B is positive

Multiple Choice

What does it mean when the electric field lines are close together?

• the field is positive

• the field is negative

• The field is strong

• the field is weak

Multiple Choice

The electrical force between charges is strongest when the charges are ______________.

• close together

• far apart

• the electric force is constant everywhere.

• there is no pattern

Multiple Choice

At which point is the electric field the strongest

• A

• B

• C

• D