15566747
Descripción
Test por Jeffrey Piggott, actualizado hace más de 1 año
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Creado por Jeffrey Piggott
hace alrededor de 6 años
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Pregunta 1
Pregunta
Which diagram shows the electric field pattern of an isolated negative point charge?
Respuesta
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A
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BImage:1b (binary/octet-stream)
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CImage:1c (binary/octet-stream)
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DImage:1d (binary/octet-stream)
Pregunta 2
Pregunta
A positive charge and a negative charge of equal magnitude are placed a short distance apart.
Which diagram best represents the associated electric field?
Respuesta
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Image:2b (binary/octet-stream)
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Image:2b (binary/octet-stream)
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Image:2c (binary/octet-stream)
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Image:2d (binary/octet-stream)
Pregunta 3
Pregunta
An electric field exists in the space between two charged metal plates.
Which of the following graphs shows the variation of electric field strength E with distance d from X along the line XY?
Respuesta
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AImage:3a (binary/octet-stream)
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BImage:3b (binary/octet-stream)
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CImage:3c (binary/octet-stream)
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DImage:3d (binary/octet-stream)
Pregunta 4
Pregunta
Which diagram represents the electric field of a negative point charge –q ?
Respuesta
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Image:4a (binary/octet-stream)
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Image:4b (binary/octet-stream)
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Image:4c (binary/octet-stream)
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Image:4d (binary/octet-stream)
Pregunta 5
Pregunta
What is an equivalent unit to 1 volt?
Respuesta
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A 1J /A
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B 1 J/C
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C 1 W/C
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D 1 W/s
Pregunta 6
Pregunta
The diagram shows an electron in a uniform electric field.
In which direction will the field accelerate the electron?
Image:
Q6 (binary/octet-stream)
Respuesta
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A
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B
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C
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D
Pregunta 7
Pregunta
Two parallel, conducting plates with air between them are placed close to one another. The top
plate is given a negative charge and the bottom one is earthed.
Which diagram best represents the distribution of charges and the field in this situation?
Respuesta
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AImage:7a (binary/octet-stream)
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BImage:7b (binary/octet-stream)
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CImage:7c (binary/octet-stream)
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DImage:7d (binary/octet-stream)
Pregunta 8
Pregunta
In a uniform electric field, which statement is correct?
Respuesta
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A All charged particles experience the same force.
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B All charged particles move with the same velocity.
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C All electric field lines are directed towards positive charges.
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D All electric field lines are parallel.
Pregunta 9
Pregunta
Which of the following is a common feature of gravitational & electric fields?
Respuesta
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A They are always attractive.
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B They always have uniform strength.
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C The force experienced by mass or charge always obeys an inverse square law.
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D The field produced is always radial.
Pregunta 10
Pregunta
What is an equipotential line in an electric or gravitational field?
Respuesta
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A A line which represents points of the same force per unit mass or force per unit charge.
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B A line where all masses or all charges must have the same amount of potential energy.
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C A line where all masses or all charges have zero potential energy.
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D A line where the force from opposite charges or opposite masses cancels out.
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