رقيه احمد الشاذلي
نتيجة الإختبار - G7 U1 L1 GE
اسم الطالب : رقيه احمد الشاذلي
المدينة : كفر الشيخ
Friday , 15 November 2024 - 06:48 PM12 من 15
السؤال - 1
Among the electrical conductors is………
a glass rod.
a wooden ruler.
a plastic straw.
a metal nail.
إجابة صحيحة
السؤال - 2
All the following are electrical nonconducting materials, except…...
wood.
carbon.
ebonite.
silk.
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السؤال - 3
Which of the following materials gains electrons when rubbed with a piece of wool?
Wood.
Glass.
silk.
Paper.
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السؤال - 4
All the following materials precede cotton in the electrostatic series, except….
silk.
glass.
ebonite.
wool.
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السؤال - 5
The magnitude of static electric charge is measured by a device called……
Ammeter.
Coulomb meter
Voltmeter.
Ohmmeter.
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السؤال - 6
All the following describe the electric field lines, except that they……
are imaginary lines.
do not penetrate metallic surfaces.
are intersecting lines.
start at the positive charge.
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السؤال - 7
Which of the following occurs when a glass rod is rubbed with a piece of silk?
The force lines start from the glass rod.
The force lines end at the glass rod.
The piece of silk is charged positively.
The force lines start from the piece of silk.
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السؤال - 8
If a rod of ebonite is brought close to the disc of an electroscope charged with a certain charge and the divergence of the leaves decreases, this means that the rod.......
discharged its charge to the electroscope.
is not charged.
is charged with the same charge as the electroscope.
is charged with a charge opposite to that of the electroscope.
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السؤال - 9
To determine the type of charge on an object, it was brought close to the disc of a charged electroscope, so the angle between the leaves increased. Which of the following can be the electrical charge of each of the object and the electroscope respectively?
Positive charge / Negative charge.
Positive charge / Positive charge.
Negative charge / Positive charge.
Positive charge / Neutral charge.
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السؤال - 10
Metal objects can be charged with static electric charges when the charged part is insulated.
True
False
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السؤال - 11
Coulomb formulated the inverse square law.
True
False
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السؤال - 12
When synthetic leather is rubbed with a piece of silk, silk loses electrons.
True
False
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السؤال - 13
Electric force lines are imaginary lines and do not intersect.
True
False
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السؤال - 14
The disc and leaves of the electroscope are made of conductive materials.
True
False
إجابة خاطئة
السؤال - 15
The lightning rod system is used to determine the magnitude of the electric charge on charged objects.
True
False
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