acid
حامض
اسم
a chemical substance
The acid in the battery is dangerous.
الدرس 4 · 36 كلمة
اضغط أي بطاقة لسماع نطق الكلمة — وتحت كل كلمة نطقها بالحروف العربية ومثال من المنهج.
background
خلفية/الخلفية
اسم
past events
Tell me about your training background.
bar
عمود/عارضة/قضيب
اسم
a thick or long, solid piece
He lifted a heavy bar of iron.
be in on
يكون في/يكون على
فعل
to participate in
He was in on the plan from the start.
beam
شعاع
اسم
a ray of light
A beam of light came through the window.
breakdown
عطل/توقف/إنهيار
اسم
a failure to operate correctly
The breakdown of the engine delayed the trip.
century
قرن ((مائة عام))
اسم
a period of 100 years
One century is one hundred years.
check up on
يتحقق من/يدقق في/يتأكد من/يتفحص
فعل
to investigate; make inquiries about
The sergeant will check up on the new men.
coil
يلف
فعل
to arrange in a ring
Please coil the wire around the rod.
cut/cut/cut off
ينقطع/يتوقف/يقطع الكهرياء
فعل
to stop suddenly; discontinue
The storm cut off the power to the base.
drift
ينجراف/ينساق/يتراكم
فعل
to move along slowly as driven by the wind, waves, or current
The boat began to drift with the current.
each other
بعضهم البعض/كل منهم الأخر
ضمير
each the other (used to indicate a mutual relationship or action)
The two students helped each other.
electrode
القطب الكهربائي
اسم
either of the 2 points at which the current enters and leaves an electrical circuit
The current enters the circuit at the electrode.
electron
الألكترون
اسم
tiny particles which carry a negative charge
An electron carries a negative charge.
electronics
الإلكترونيات
اسم
a branch of physics
He studies electronics at the technical school.
extinguish
يطفئ/يبطل/يخمد
فعل
to put out
Use water to extinguish the fire.
flashlight
المصباح الكاشف (كاشف يد)
اسم
a small hand light, usually powered by batteries
He used a flashlight to see in the dark.
in case
في حالة
أداة ربط
if it happens that
Take a coat in case it gets cold.
in case of
في حالة كذا
حرف جر
if it happens that
In case of fire, call for help.
in the event (that)
في حالة حدث (ذلك)
أداة ربط
if it should happen that
In the event that he is late, start without him.
magnet
مغناطيس
اسم
something that attracts iron
The magnet will attract the iron nails.
magnetic
مغناطيسي
صفة
of a magnet
The needle points north because of the magnetic field.
negative
سلبي/سالب
صفة
opposite of positive
The electron has a negative charge.
one another
أحدهما الآخر/كلأ للآخر
ضمير
to indicate a reciprocal relationship
The soldiers help one another during training.
pole
القطب
اسم
northern or southern ends of the earth
The North Pole is very cold.
positive
موجب/إيجابي
صفة
positive electricity
The other end of the battery has a positive charge.
primitive
بدائي
صفة
simple, not developed
The tools they used were very primitive.
provided/providing that
بشرط أن/على أن/المنصوص علية
أداة ربط
on condition that
You may go, provided that you finish the work.
repel
يصد/يرد/يقاوم
فعل
to drive back
Two magnets can repel each other.
rod
قضيب/عصا
اسم
a long, narrow bar
The metal rod is one meter long.
static
تشويش/خشخشة
اسم
a noise produced by electricity
There was too much static on the radio.
stick/stuck/stuck to
يتمسك بـ/يلتزم بـ/لايتغير أو يتبدل
فعل
to adhere; continue
He stuck to his plan and finished the work.
surge
إندفاع/إرتفاع في/زيادة مفاجئة
اسم
a sudden increase
A surge of current damaged the machine.
surge
يندفع/يشتد/يتدفق
فعل
to become greater
The voltage will surge when the machine starts.
volt
الفولت
اسم
a unit of electrical force
The battery produces twelve volts.
voltage
الفولطية (الجهد الكهربائي)
اسم
an electrical force measured in volts
Check the voltage before you connect the wire.