مارتن بيشوى عزت
نتيجة الإختبار - G7 U2 L1 GE
اسم الطالب : مارتن بيشوى عزت
المدينة : كفر الشيخ
Sunday , 15 December 2024 - 12:12 PM9 من 10
السؤال - 1
All the following are electrical nonconducting materials, except…...
wood.
carbon.
ebonite.
silk.
إجابة صحيحة
السؤال - 2
When a carbon rod is rubbed with dry silk, no electrostatic charge is generated on the carbon rod. What is the reason for this?
Carbon precedes silk in the electrostatic series.
Silk precedes carbon in the electrostatic series.
Silk is a nonconducting material.
The carbon rod is not insulated.
إجابة خاطئة
السؤال - 3
The magnitude of static electric charge is measured by a device called……
Ammeter.
Coulomb meter
Voltmeter.
Ohmmeter.
إجابة صحيحة
السؤال - 4
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.
إجابة صحيحة
السؤال - 5
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.
إجابة صحيحة
السؤال - 6
Which of the following expresses what happens to the two leaves of a negatively charged electroscope when a piece of synthetic leather rubbed with wool is brought close to its disc?
The leaves return applicable.
The leaves divergence increases.
The leaves divergence decreases.
The leaves divergence is not affected.
إجابة صحيحة
السؤال - 7
Metal objects can be charged with static electric charges when the charged part is insulated.
True
False
إجابة صحيحة
السؤال - 8
Electrons are neutrally charged particles that are not deflected by the effect of an electric field.
True
False
إجابة صحيحة
السؤال - 9
Electric force lines are imaginary lines and do not intersect.
True
False
إجابة صحيحة
السؤال - 10
The lightning rod discharges the accumulated electric charges on clouds.
True
False
إجابة صحيحة