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