اختبار ساينس Science -الوحدة 4 -الصف الخامس

هذه معاينة نصية للأسئلة للاطّلاع والمراجعة فقط. لخوض الاختبار تفاعليًّا مع تصحيح آلي ونتيجة فورية، اضغط زر «ابدأ الاختبار» أدناه.

1. Solar system consists of the sun and group of planets revolves around it
   • أ. True
   • ب. False
2. Nicolaus Copernicus is a scientist states that the earth revolves around the ...... .
   • أ. sun
   • ب. moon
   • ج. stars
3. In solar system each planet revolves around the sun a fixed path called ............
   • أ. orbit
   • ب. line
   • ج. plane
4. Earth revolves around the sun in a .......... speed
   • أ. very high
   • ب. very slow
   • ج. slow
5. The great gravitational pulling force of the......... keeps the planets revolving in fixed orbits
   • أ. sun
   • ب. moon
   • ج. Earth
6. The orbit of each planet has an ............ shape.
   • أ. ellipse (oval)
   • ب. circular
   • ج. line
7. If there were no gravity, the planets would fly off into space.
   • أ. True
   • ب. False
8. The ......... is the only center of motion in the solar system.
   • أ. sun
   • ب. moon
   • ج. Earth
9. Gravity is the invisible attraction or pulling force that holds all the planets in their places.
   • أ. True
   • ب. False
10. The shape of the object is affected by air resistance
    • أ. True
    • ب. False