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WorksheetsUnit 9: Electrostatics and Electric Fields
Total questions: 30
Worksheet time: 41mins
Which two particles are attracted to each other?
Two neutrons
A proton and an electron
Two protons
An electron and a neutron
What is the SI unit for charge?
Joules
Coulombs
Newtons
Meters
Approximately how much force would be generated by two charged objects held 2 m apart, if q1 has a charge of 3.0 C and q2 has a charge of 4.0 C?
0.5 N
150 N
270 N
300 N
Electric Field strength depends on what
charge
distance
charge and distance
electric force
Which of the following materials conducts electricity the best?
plastic
rubber
metal
glass
Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.
-1.5 x 10-11 N
2.5 x 10-11 N
-2.5 x 1011 N
-7.5 x 10-10 N
A repulsive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two electrons
which is the field for opposite charges
The process of removing excess charge by touching an object to Earth
Electrostatics
Charging by Conduction
Grounding
Equipotential
The work needed to move a positive test charge from one point to another, divided by the magnitude of the test charge; also called potential difference.
Electric Potential Difference
Electroscope
Electric Field Line
Electric Field
The ratio of the magnitude of charge on one capacitor plate to the electric potential difference between the plates; the slope of the line of a net charge versus potential difference graph.
Capacitance
Capacitor
Electroscope
Electrostatics
A material, such as glass, through which a charge will not move easily.
Insulator
Capacitor
Grounding
Conductor
The SI standard unit of charge; equal to the magnitude of the charge of 6.24 x 1018 electrons or protons.
Grounding
Capacitor
Coulomb
Equipotential
A positive charge of 1.5 x10^-8 C experiences a force of 0.025 N to the left in an electric field. What is the magnitude of the field? E = F/q'
1.7 x 10^6 N/C
2.0 x 10^6 N/C
3.4 x 10^6 N/C
1 x 10^6 N/C
What did Millikan use a uniform electric field between two parallel plates to measure?
charge of an electron
electric fields near conductors
the electric potential difference caused by X-rays
the terminal velocity of a charged oil drop
As an electric field becomes stronger, the field lines should be drawn ____ .
closer together
farther apart
thicker
thinner
An electroscope has an excess of 3.9 × 108 electrons. What is the charge on the electroscope?
1.6 × 10–11 C
2.4 × 10–11 C
4.1 × 10–11 C
6.2 × 10–11 C
A lightning bolt transfers a charge of 17 C. How many elementary electrical charges does the lightning bolt transfer if it strikes the ground?
1.1 × 1018 electrons
2.7 × 1018 electrons
1.1 × 1020 electrons
2.7 × 1020 electrons
Two charged parallel plates that are 2.0 × 10–2 m apart have an electric field between them with a magnitude of 1600 N/C. What is the electric potential difference between the plates?
32 V
23.5 V
80,000 v
.0000125 V
The electric field at the location of q' is represented by which of the following equations?
E = F/q'
E = q'/Fq'
E = q/ΔV
E = W/q'
Two parallel plates are given opposite charges. A voltmeter measures the electric potential difference to be 47.0 V. The plates are 5.0 cm apart. What is the magnitude of the electric field between them?
1.1×10-3 N/C
1.1×10-3 N/C
9.4×102 N/C
9.4×103 N/C
The SI derived unit of potential difference is the __________.
ohm
volt
joule
coulomb
A voltmeter reads 450 V across two charged, parallel plates that are 5.0 cm apart. What is the electric field between them?
9.0×101 N/C
1.1×10-4 N/C
9.0×103 N/C
9.0×102 N/C
