Show:
Mechanics
Electric Charge
Electric Fields
Gauss' Law
Circuits
100

If an object is moving to the left (negative direction) and slowing down, what is the direction of acceleration?

To the right (positive direction)

100

What type of charges attract each other?

Opposite

100

Electric field lines end at _________ charges

negative
100

What Gaussian shape would you enclose a point charge with?

Sphere

100
Series circuit elements have a constant...
Charge
200
1 kg*m/s2 is equal to what other unit?
1 Newton
200

What is k equal to?

9E9 or 1/[4(pi)(epsilon0)]

200

True/False: Electric field lines can cross

False

200

What Gaussian shape would you enclose a line of charge with?

Cylinder

200
Parallel circuit elements have a constant...
Voltage
300

What is a (mechanics) example of the inverse square law?

Newton's Law of Universal Gravitation

FG = G(m1m2)/r2

300

What is an insulator?

A material that almost never has free-moving electrons.

300

What is the electric field inside of a conductor?

0

300

What is the electric flux if there is no charge enclosed in the Gaussian surface?

0

300

If you connect a lightbulb to two batteries in series, how would it compare to the brightness of a lightbulb connected to two batteries in parallel?

The bulb in series will be less bright than the bulb in parallel

400

What is the equation for kinetic energy?

K = (1/2)mv2

400

Two identical spheres with an initial charge q1 = 4C and q2 = 20C are touched together then separated. What is the charge on each sphere after separation?

12C

400

If you double the distance between two charges, what happens to the magnitude of electric field?

It decreases by a factor of 4.

400

What is the sign on an inward flux?

Negative

400

What rule is this? The algebraic sum of the changes in potential encountered in a complete traversal of any loop of a circuit must be zero.

Kirchoff's Loop Rule

500

Starting on level ground, what angle should a projectile be launched at to have the greatest displacement?

45˚

500

What is the value of the elementary charge e?

1.602*10-19 C

500

When is the potential energy of a dipole in an electric field the greatest?

When the dipole moment p is anti-parallel to the electric field E

500

What angle between dA and E would lead to the greatest magnitude of electric flux?

0˚ or 180˚

500

What rule is this?: The sum of the currents entering any junction must be equal to the sum of the currents leaving that junction

Kirchoff Junction Rule