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Concept 1
Concept 1
نسخ
تكرار
اختبار خاص بالمعلم:
Heba abdelzaher
إسمك
صفك
مدة الاختبار:
0:10:00
الوقت المتبقي:
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1
Plant take ......from air to make own food
Oxygen
Water
Carbon dioxide
2
Formation of shadow when light falls on an object is due to...........
travelling of light in straight lines.
formation of images through narrow holes.
transmitting light through transparent materials.
all the previous reasons,
3
The materials which let all light pass through are called........... materials.
transparent
semi-transparent
opaque
translucent
4
All the following are examples of semi-transparent materials except..........
frosted light bulbs.
frosted glass cup.
foil paper.
tissue paper.
5
.......... Is not a source of light as it reflects the sunlight.
The star
The meteor
The moon
The planet
6
We can see objects due to...........
splitting of light.
light refraction.
light reflection.
absorption of light.
7
Mixing the seven light spectrum colours gives the........... Light
black
green
white
blue
8
The second spectrum colour is..........
orange.
green.
violet.
red.
9
If you put an object at a distance of 20 cm. in front of the mirror, the distance between the image and the mirror equals...........
25
10
20
30
10
A rainbow is formed when...........
sunlight passes through glass.
sunlight doesn't pass through any medium.
sunlight passes from the drops of rain water to air, then its splitting into seven spectrum colours.
sunlight passes from air to water, then its splitting into seven colours.
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