Toggle navigation
التسجيل
تسجيل الدخول
الرئيسية
»
الاختبارات
»
الترم الأول
»
Unit 1 - Lesson 1: Matter and its Characteristics
Unit 1 - Lesson 1: Matter and its Characteristics
نسخ
تكرار
1
The colour property is a distinguishing factor between..........
iron and gold.
oxygen and carbon dioxide.
oxygen and nitrogen.
table salt and flour.
2
The property of electric conduction is a distinguishing factor between..........
iron and wood.
wood and plastic.
no correct answer.
iron and copper.
3
The taste property is a distinguishing factor between..........
wood and plastic.
milk and honey.
silver and gold.
oxygen and nitrogen.
4
The smell property is a distinguishing factor between...........
wood and plastic.
silver and iron.
iron and copper.
vinegar and perfume.
5
The density of a substance is a........... property.
biological
chemical
physical
no correct answer
6
Density of matter =.............
Volume ÷ Mass
Mass x Volume
Mass + Volume
Mass ÷ Volume
7
The volume of liquid is calculated from the relation..........
mass + density
density ÷ mass
mass × density
mass ÷ density
8
Density of red copper is 8.8 gm/cm³ means
the mass of the volume unit of red copper equals 8,8 gm.
the mass of the volume unit of red copper does not equal 8.8 gm.
the mass of the volume unit of red copper equals 0.8 gm.
the mass of 10 cm³ of red copper equals 8.8 gm.
9
The mass of water in gm is always....... its volume in cm³ (knowing that the density of water is 1 gm/cm³).
double
less than
more than
equal to
10
The density of a substance whose mass is 15 gm and occupies 30 cm³ is........... the density of water.
equal to
no correct answer
less than
more than
11
Equal masses of different substances have........... volumes.
equal
different
similar
constant
12
........... is from the substances that float on water surface.
Copper
Cork
Aluminum
Iron
13
When a substance sinks in water, this means that its density is......... the density of water.
less than
no correct answer
equal to
more than
14
A piece of metal, whose mass is 25 gm and its volume is 10 cm? When it is placed in water it will......... (water density I gm/cm³).
suspend.
float.
sink.
dissolve.
15
The mass of a piece of rock whose density is 2.8 gm/cm³ is 28 gm, so the density of 280 gm of it is......... gm/cm³
280
28.5
28
2.8
16
The density of petroleum oil is.......... that of water.
less than
more than
equal to
no correct answer
17
The balloons that are filled with helium gas in celebrations, rise up in air. because..........
no correct answer.
density of helium is more than that of air.
density of helium is less than that of air.
density of helium equals that of air.
18
............ gas is used in filling balloons of celebrations.
Nitrogen
Hydrogen
Neon
Oxygen
19
Heating coils are made up of.......... alloy.
nickel-iron
chrome-copper
nickel-chrome
iron-copper
20
.......... Used for fast cooking
Electric wires
Electric screwdrivers
Hearing coil
Pressure pans
21
Separation of components of petroleum oil depends on the difference in their............
densities.
all of them.
melting points.
boiling points.
22
All of the following substances conduct electricity except..........
aluminum.
wood.
iron.
copper.
23
Metals are characterized by their.........
all of the previous answers.
conductivity of heat.
conductivity of electricity.
high melting point.
24
All of the following substances are bad conductors of heat except...........
wood.
No correct answer
iron.
plastic.
25
All of the following solutions conduct electricity except.......... solution.
sugary
alkaline
salt
acidic
26
Among elements which has a great difficulty to react with oxygen of air is............
sodium.
potassium.
chromium.
aluminum.
27
The metal used to cover other substances which rapidly rust is..........
copper.
lead.
silver.
iron.
×
بلاغ عن خطأ
مقدم البلاغ
طالب
معلم
السؤال
تفاصيل الخطأ
إرسال
إلغاء
×
مشاركة
#
#
نسخ الرابط
