Electrostatics: Electric Field, Electric Force, Potential Energy, Electric Potential (voltage)

What sign is this charge?
1. positive
2. negative
3. neutral
What sign is this charge?
1. positive
2. negative
3. neutral
Where is the electric field strength the greatest?
1. at point A.
2. at point B.
3. it is the same at both points.
Where would a negative charge feel less force?
1. at point A.
2. at point B.
3. same at both points.
Which point has the greater electric potential (voltage)?
1. at point A.
2. at point B.
3. same at both points.
Which would feel a greater force at point A, a proton or an electron?
1. a proton.
2. an electron.
3. same force on both.
Which charge is bigger?
1. The one with arrows in.
2. The one with arrows out.
3. Both have the same amount of charge.
What is the sign of the left charge?
1. positive
2. negative
3. neutral
Which charge experiences the greatest electric field?
1. -2C
2. 1C
3. 2C
4. -1C
5. Same for all
Which charge feels the greatest magnitude of force: the –2C or the 2C?
1. -2C
2. 2C
3. same on both charges.
In constant field equations (non-kc) is this field + or -?
1. positive
2. negative
If the 2C charge is released, will it gain or lose potential energy?
1. Gain energy.
2. Lose energy.
3. Its energy will not change.
If the –1C charge is released, will it gain or lose potential energy?
1. Gain energy
2. Lose energy
3. Its energy will not change.
When released, which way will the positive charges move?
1. Left
2. Right
3. Up
4. Down
When released, which way will the negative charges move?
1. Left
2. Right
3. Up
4. Down
Which way would you move the –1C charge for it to gain PE?
1. Left
2. Right
3. Up
4. Down
Which way would you move the 1 C charge to increase its PE?
1. Left
2. Right
3. Up
4. Down
Which charge has the most electric potential?
1. The positive charge.
2. The negative charge.
3. They are equal.
Which charge has the greatest electric field at its current position?
1. The positive charge.
2. The negative charge.
3. They are equal.
Which way does the electric field point?
1. Up
2. Down
3. Left
4. Right
If the + charge is moved to B, does it gain or lose PE?
1. Gains.
2. Loses.
3. There is no change.
If the + charge is moved to B, does it gain or lose voltage?
1. Gains.
2. Loses.
3. There is no change.
If the − charge is moved to A, does it gain or lose PE?
1. Gains.
2. Loses.
3. There is no change.
If the − charge is moved to A, does it gain or lose electric potential?
1. Gains.
2. Loses.
3. There is no change.
If the + charge moves to point A, does it gain or lose PE?
1. Gains.
2. Loses.
3. There is no change.
If the charged plate are brought closer together, will the voltage between the plates increase or decrease?
1. Increase.
2. Decrease
3. There is would be no change.
Where is the electric field the weakest?
1. Point A.
2. Point B.
3. Point C.
4. Same for all points.
Where is the electric potential the strongest?
1. Point A.
2. Point B.
3. Point C.
4. Same for all points.
Where is the electric force the strongest?
1. Point A.
2. Point B.
3. Point C.
4. Same for all points.
Which quantities are zero at the midpoint between two equal charges?
1. Electric force
2. Electric force and electric field
3. Electric force and electric potential energy
4. Electric force and voltage
5. Electric field and voltage
6. Electric field and potential energy
7. Electric force, electric field, and electric potential energy.
What is the magnitude of the total electric field at point P?
1. 0
2. 2
3. 3
4. 6
5. 9
6. 12
7. 18
What is the magnitude of the total electric force at point P?
1. 0
2. 2
3. 3
4. 6
5. 9
6. 12
7. 18
What is the magnitude of the total voltage at point P?
1. 0
2. 2
3. 3
4. 6
5. 9
6. 12
7. 18
What is the magnitude of the total electric field at point P?
1. 0
2. 2
3. 3
4. 6
5. 9
6. 12
7. 18
What is the magnitude of the total electric potential at point P?
1. 0
2. 2
3. 3
4. 6
5. 9
6. 12
7. 18
What is the magnitude of the total electric field at point P?
1. 0
2. 3
3. 4
4. 5
5. 9
6. 16
What is the magnitude of the total voltage at point P?
1. 0
2. 1
3. 3
4. 4
5. 8
6. 9
7. 12
8. 17
What is the direction of the total electric field at point P?
What would be the direction of the force on a + charge placed at P?
What would be the direction of the force on a − charge placed at P?
What is the direction of the electric field at point P?
What is the direction of the electric field at point P?
Which way would a − charge move if placed at point P?
What is the direction of the electric field at point P?
Which way would a + charge move if placed at point P?
If the top charge is moved to point B, how would the magnitude of the net electric field change at point P?
1. Increase
2. Decrease
3. No change
If the top charge is moved to point B, how would the total voltage change at point P?
1. Increase
2. Decrease
3. No change