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WorksheetsElectric Fields and Force
Total questions: 10
Worksheet time: 1hrs 19mins
Based on the arrangement of the electric field lines in the diagram, what are the charges?
both charges are the same
the charges are opposite
they are neutral; no charge
Which statement best describes the electric fields in the image?
The charges are neutral.
Both charges are negative, so the field lines are alike.
The field lines move toward a positive charge and away from a negative charge.
The field lines move away from a positive charge and toward a negative charge.
Which statement describes what is happening in the image at the space indicated by the green arrow?
The field lines are repelled by like charges.
The field lines are repelled by opposite charges.
The field lines are attracted by the like charges.
The field lines are attracted by the opposite charges.
An electrostatic force of 20. newtons is exerted on a charge of 8.0 x 10-2 coulomb at point P in an electric field. What is the magnitude of the electric field intensity at P?
1.6 N/C
20. N/C
2.5 x 102 N/C
4.0 x 10-3 N/C
What is electric field?
force per unit positive charge
region of space where a charge experiences a force
region of space where a particle experiences a force.
work done per unit charge in bring a positive charge from infinity to the point.
The diagram above shows two negatively charged balloons
suspended from nonconducting strings being held by a student. What occurs as the student brings the balloons closer to each other without allowing them to touch?
The magnitude of the electrostatic force between the balloons increases, and they attract each other.
The magnitude of the electrostatic force between the balloons decreases, and they repel each other.
The magnitude of the electrostatic force between the balloons increases, and they repel each other.
The magnitude of the electrostatic force between the balloons decreases, and they attract each other.
Choose TWO correct statements how lightning happened.
The upper part cloud is negatively charged
The ground is negatively charged
The friction of air and cloud produce electric charges
Force of repulsion occur between the ground and cloud
