Electrostatics, Electric Fields and Potential

Ratios

100

Double distance the force is 

1/4 (quarter)

200

The force between two objects is 20N, if you double both charges the new force is:

What is 80N?

300

The force between two charges is 12N, if you double q1, double q2 and double the distance the new force is:

What is 12N?

400

What is the new force if the force is originally 10N and then you double q1, cut distance in half and triple q2?

What is 240N?

500

A force is originally 18N what would you have to do to the distance to make it be 2N?

What is triple the distance?

Electrostatics

100

Coulomb's Law depends on...

What is charge and distance

200

The elctric force between two charges is strongest when?

when the charges are close together

300

Two objects are held together and let go, as they move the force between them decreases, the charges must be___________ signs

what is same?

400

This is the E-Field equation with in terms of q and r.

kq/r^2

500

The up, charm, and top quarks would feel a(n) _____________ force from a positive charge.

What is repulsive?

Electric Fields

100

A test charge is _____

What is positive?

200

For a positive charge the electric field lines would be drawn how?

pointing out toward infinity

300

The arrows of the electric field lines shows the ______ of the force on a positive test charge

What is direction?

400

Draw the electric field between a positive and negative chage

(draw on board)

500

An unknown charged object is located at the origin of a grid. The electric field at (3,0) is 10 N/C to the left. What is the sign of the unknown charge?

what is negative?

Random facts

100

Opposite charges __________

What is attract?

200

In a conductor ____ are allowed to move freely

What are electrons?

300

If an object becomes negatively charged it ____ electrons

What is gains?

400

An electroscope is negatively charged. As a positive rod is brought closer the leaves will:

Move closer together

500

Name 8 NY Professional sports teams.

Rangers, Islanders, Sabres (NHL)
Giants, Jets, Bills (NFL)
Yankees, Mets (MLB)
Knicks, Nets (NBA)
Redbulls, NYC FC (MLS)
Liberty (WNBA)
Sirens (PWHL)
Bandits, Riptide, Knighthawks, FireWolves (NLL)

Math

100

What is the force between a 2x10^-5C charge and 3x10^-5C charge that are 2x10^-1 apart?

What is 135 N

200

How many e- are missing from a charge of 10x^-9C

6.25x10¹⁰

300

What is the electric field on a 3.2mC charge that feels a force of 4x10^-8N?

What is 1.25x10^-5 N/C

400

Two equal charges experience a force of 2.4x10^-1N, and are 27nm apart. What are the charges?

what is 1.4 x10^-13C

500

How far apart are two charges of 2mC and 0.8mC that experience a force of 1.2N?

What is 110m?