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اختبار الكتروني العلوم لغات الصف الرابع نموذج (2)
اختبار الكتروني العلوم لغات الصف الرابع نموذج (2)
نسخ
تكرار
1
........ The primary source of fuel is
water
wind
sunlight
2
.......... is from the non- renewable resources of energy
Ethanol
Gasoline
Wind power
3
......... The available quantities of fossil fuels on earth is
limited
average
large
4
........ Biofuel renews continually with
existence of remains of plants
existence of remains of sea creatures
growth of plants
5
Under the effect of pressure and temperature, the remains of .... are
sea-creatures
sand
mud
6
...... Energy is not destroyed nor created and this is the law of
energy destruction
energy resources
conservation of energy
7
.......... Charcoal is made from
corn
herbs
wood
8
The source of energy in alarm is the batteries which store ..... energy
light
chemical
thermal
9
energy is from the energy inputs in mobile phone ...........
Sound
Thermal
Chemical
10
The electric power plants use coal which stores ........... energy
Sound
Thermal
Chemical
11
......... The calculator that works by solar energy contains
solar furnaces
solar heater
solar panels
12
.The input energy in the hair dryer is ............ energy
kinetic
thermal
electrical
13
The sensors in Curiosity work by ........ energy
kinetic
thermal
electrical
14
On burning coal, the chemical energy is converted to ........ energy
kinetic
thermal
electrical
15
The kinetic energy of the bike transfer to ....... when it hits a bread cart
bread
cart and bread
sidewalk
16
..... Fossil fuels are extracted from
underground
food
water
17
When the collision happens, the airbags ........... at very high speed
inflates
bounces
reflects
18
..... All of the following are renewable resources of energy except
wind
sun
natural gas
19
body has high kinetic energy ..........
light and fast
heavy and fast
light and slow
20
The electrical energy resulted from the kinetic energy of water is called
chemical
water
hydroelectric
21
......... On collision
the bodies move in the same direction of the body highest kinetic energy
the bodies move in the opposite direction of the body highest kinetic energy
the bodies move in the same direction of the body lowest kinetic energy
22
Oil does not mix with water because they have chemical structure
similar
different
approximate
23
...The fruit trees convert light energy to chemical energy in form of
starches
proteins
sugars
24
Charcoal is from ......... fuels
bio
renewable
alternative
25
The rate of consumption of .......... is faster than the rate of its renewal
water
oil
air
26
...... Chemical energy is converted to kinetic energy on
stopping on the road by a bike
pushing the pedal of bike by legs
stopping of the bike suddenly
27
...... The source of ethanol is
coal
oil
corn
28
The ecologists study the motion of ..... in hard ecosystems such as the bottom of ocean
energy
fish
force
29
The gas heater converts ....... energy to thermal energy
light
solar
chemical
30
....... According to the law of conservation of energy
increase
disappear
not-disappear
31
...When a heavy body hits a light body moving with high speed ,so
the heavy body is affected by many damages
the light body is affected by damages
the heavy body is not affected by any damages
32
The spacecraft takes six ....... or more to reach Mars
days
weeks
months
33
Walid plays cricket where he takes the ball by a bat, then he directs it to his friend, what happens
Walid hits his friend
The ball hits the bat
no energy transfer occurs
34
When the mass of the body decreases to quarter, so its kinetic energy
remains constant
decreases to half
decreases to quarter
35
Nour entered the classroom, and collided with her desc and it fell
Nour was fast her energy transferred to the desc and she felt pain on collision
Nour was slow her energy transferred to the desc and she felt pain on collision
Nour's energy did not affect the desc
36
If the truck moved at speed equal to the speed of the car, so the truck has
less kinetic energy
more kinetic energy
more potential energy
37
........... The seatbelt in car is used to
stop the car
increase the speed of the car
prevent the driver's body from moving forward
38
.........., When a rock hits a glass window
we hear a sound
the window may be broken
all of previous
39
When a body collides with another one, it transfers some of its energy in form of
heat
light
all of previous
40
when 2 bodies collide, transfer of ........ occurs
energy
mass
body
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