امتحان - ساينس - رابعة ابتدئي - الوحدة الثانية - مقرر ديسمبر

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

1. <p style=\"direction: ltr;\">.................it is the crashing of two objects with each other.</p>
   • أ. Collision
   • ب. Energy
   • ج. Motion
2. <p style=\"direction: ltr;\">The kinetic energy of the object depends on its_____&nbsp;</p>
   • أ. speed
   • ب. direction
   • ج. energy
3. <p style=\"direction: ltr;\">The kinetic energy ..........by increasing the speed of object.</p>
   • أ. increase
   • ب. decrease
   • ج. not affected
4. <p style=\"direction: ltr;\">The fast objects cause a big harm during collision.</p>
   • أ. True
   • ب. False
5. <p style=\"direction: ltr;\">If the speed increases to double the kinetic energy increases ____</p>
   • أ. four times
   • ب. three times
   • ج. six times
6. <p style=\"direction: ltr;\">To avoid accident we shouldn&rsquo;t ride the car with ............</p>
   • أ. high speed
   • ب. low speed
7. <p style=\"direction: ltr;\">By increasing the mass of the object the kinetic energy_________</p>
   • أ. increases
   • ب. decreases
   • ج. not affected
8. <p style=\"direction: ltr;\">By increasing the mass of the object ____________</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p>
   • أ. the consuming of fuel increases.
   • ب. the harms of collision decreases
   • ج. the kinetic energy decreases
9. <p style=\"direction: ltr;\">The truck needs engine ........... the car.</p>
   • أ. bigger than
   • ب. smaller than
   • ج. equal
10. <p style=\"direction: ltr;\">The big vehicle causes ......... harms during the collision than&nbsp;the small one moves by the same speed&nbsp;&nbsp;</p>
    • أ. more
    • ب. less
11. <p style=\"direction: ltr;\">By increasing the mass the speed ________</p>
    • أ. increases
    • ب. decreases
    • ج. not affected
12. <p style=\"direction: ltr;\">The energy changes during collision from __________</p>
    • أ. kinetic to potential
    • ب. potential to kinetic
    • ج. kinetic to heat
13. <p style=\"direction: ltr;\">Kinetic energy depends on _______</p>
    • أ. speed and mass
    • ب. speed and direction
    • ج. mass and direction
14. <p style=\"direction: ltr;\">The slow rubber ball produce higher sound when it hits the&nbsp;racket more than the faster one.</p>
    • أ. False
    • ب. True
15. <p style=\"direction: ltr;\">When an object crashes another one transfers some energy to it.</p>
    • أ. True
    • ب. False