Which of the following statements is incorrect?

LÍ HK1

Quiz
•
Physics
•
1st Grade
•
Hard
Tung Pham
FREE Resource
59 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Electron is a particle with a negative charge: -1.6 x 10^-19 (C).
Electron is a particle with a mass of 9.1 x 10^-31 (kg).
An atom can lose or gain electrons to become an ion.
Electrons cannot move from one object to another.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two objects can exert electric force on each other:
Only when they are both conductors.
Only when they are both insulators.
When one is an insulator and the other is a conductor.
When one of the two objects carries an electric charge.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is incorrect?
In a conductor, there are many free charges.
In an insulator, there are very few free charges.
Overall, a charged object still behaves like a neutral object.
Overall, a charged object in contact still behaves like a neutral object.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The intensity of the electric field at a point characterizes the electric field at that point in terms of:
The direction of the electric field vector.
The direction of the force acting.
The magnitude of the electric field vector.
The effect of electric force.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following concepts describes the strength of the electric field at a point?
Electric charge
Electric field
Electric field strength
Electric field lines
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The direction of the electric field vector caused by a point charge Q < 0 at a point M is:
Towards Q.
Away from Q.
In the same direction as F.
Opposite to the direction of F.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The work done by the electric force on a charge:
Does not depend on the path taken by the charge.
Depends only on the magnitude of the charge.
Depends on the path taken by the charge.
Depends only on the strength of the electric field.
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