STRAIGHTERLINE INTRODUCTION TO
PHYSICS PHY250L LAB PRACTICE
SOLUTION 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ voltage. Answer: potential difference
⩥ battery. Answer: transforms chemical energy into electric potential
energy
⩥ voltmeter. Answer: device used to measure potential difference
⩥ true. Answer: electric field lines radiate away from positive charges
and towards negative charges
⩥ true. Answer: electric field is always perpendicular to equipotential
lines
⩥ true. Answer: the units of electric field are either newtons per
coulomb or volts per meter
⩥ false. Answer: the electric field points in the direction of increasing
electric potential
,⩥ false. Answer: the electric field inside a parallel plate capacitor
decreases as it approaches the negative plate
⩥ 1. Charge is measured in units of _____.. Answer: coulombs
⩥ 2. The electric field is a _____ field.. Answer: vector
⩥ 3. The electric field represents the electric force that would act on a
small _____ test charge.. Answer: positive
⩥ 4. The difference between the electric potential at two points is the
_____.. Answer: voltage
⩥ 5. The electric potential is represented by _____.. Answer:
equipotential lines
⩥ 6. The electric field must always be perpendicular to equipotential
lines because no work is required to move a charge along an
equipotential line.. Answer: true
⩥ 7. The electric field points in the direction of _____ potential..
Answer: decreasing
,⩥ 1. Two positive electric charges will attract one-another.. Answer:
false
⩥ 2. The electric field is the _____ per unit charge.. Answer: force
⩥ 3. The electric field points _____ a positive charge.. Answer: away
from
⩥ 4. Electric field lines are _____ to electric force vectors.. Answer:
tangent
⩥ 5. A capacitor is used to store electric _____.. Answer: energy
⩥ 6. The electric potential is the electric _____ per unit charge.. Answer:
energy
⩥ 7. The electric potential _____ along parallel lines inside a parallel
plate capacitor.. Answer: is constant
⩥ 8. The electric field is equal to the negative of the potential difference
_____ the distance.. Answer: divided by
⩥ 9. The electric field is always _____ to the equipotential lines..
Answer: perpendicular
, ⩥ 10. The voltage of the conductive paper between two conductors is
greater than zero and less than the voltage of the battery.. Answer: true
⩥ 11. The lines traced out between two conductors on conductive paper
connecting points of equal voltage are _____ lines.. Answer:
equipotential
⩥ 12. The electric field between two parallel lines of opposite charge
_____.. Answer: is perpendicular to the lines of charge, is uniform in
magnitude and direction, points from the positive charges to the negative
charges
⩥ 13. The potential difference between two points separated by 2 meters
is 7 volts, and the electric field between those two points is _____ volts
per meter.. Answer: 3.5
⩥ current. Answer: a measure of the rate of flow of charges past a point
in a circuit
⩥ voltage. Answer: a measure of the potential difference across a circuit
component
⩥ resistance. Answer: a measure of the hindrance of flow for charges in
a circuit
PHYSICS PHY250L LAB PRACTICE
SOLUTION 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ voltage. Answer: potential difference
⩥ battery. Answer: transforms chemical energy into electric potential
energy
⩥ voltmeter. Answer: device used to measure potential difference
⩥ true. Answer: electric field lines radiate away from positive charges
and towards negative charges
⩥ true. Answer: electric field is always perpendicular to equipotential
lines
⩥ true. Answer: the units of electric field are either newtons per
coulomb or volts per meter
⩥ false. Answer: the electric field points in the direction of increasing
electric potential
,⩥ false. Answer: the electric field inside a parallel plate capacitor
decreases as it approaches the negative plate
⩥ 1. Charge is measured in units of _____.. Answer: coulombs
⩥ 2. The electric field is a _____ field.. Answer: vector
⩥ 3. The electric field represents the electric force that would act on a
small _____ test charge.. Answer: positive
⩥ 4. The difference between the electric potential at two points is the
_____.. Answer: voltage
⩥ 5. The electric potential is represented by _____.. Answer:
equipotential lines
⩥ 6. The electric field must always be perpendicular to equipotential
lines because no work is required to move a charge along an
equipotential line.. Answer: true
⩥ 7. The electric field points in the direction of _____ potential..
Answer: decreasing
,⩥ 1. Two positive electric charges will attract one-another.. Answer:
false
⩥ 2. The electric field is the _____ per unit charge.. Answer: force
⩥ 3. The electric field points _____ a positive charge.. Answer: away
from
⩥ 4. Electric field lines are _____ to electric force vectors.. Answer:
tangent
⩥ 5. A capacitor is used to store electric _____.. Answer: energy
⩥ 6. The electric potential is the electric _____ per unit charge.. Answer:
energy
⩥ 7. The electric potential _____ along parallel lines inside a parallel
plate capacitor.. Answer: is constant
⩥ 8. The electric field is equal to the negative of the potential difference
_____ the distance.. Answer: divided by
⩥ 9. The electric field is always _____ to the equipotential lines..
Answer: perpendicular
, ⩥ 10. The voltage of the conductive paper between two conductors is
greater than zero and less than the voltage of the battery.. Answer: true
⩥ 11. The lines traced out between two conductors on conductive paper
connecting points of equal voltage are _____ lines.. Answer:
equipotential
⩥ 12. The electric field between two parallel lines of opposite charge
_____.. Answer: is perpendicular to the lines of charge, is uniform in
magnitude and direction, points from the positive charges to the negative
charges
⩥ 13. The potential difference between two points separated by 2 meters
is 7 volts, and the electric field between those two points is _____ volts
per meter.. Answer: 3.5
⩥ current. Answer: a measure of the rate of flow of charges past a point
in a circuit
⩥ voltage. Answer: a measure of the potential difference across a circuit
component
⩥ resistance. Answer: a measure of the hindrance of flow for charges in
a circuit
