A train moves at a speed (30 m/sec). And when the brakes is used it moves with a decelerating (3 m/sec2). Calculate the time taken to stop the train

سؤال 1
الدرجة 1.00

A train moves at a speed (100 km/h), then it cover a distance of (40 km) within time .......... hours.

سؤال 2
الدرجة 1.00

If the number of chromosomes in liver cells of a certain living organism is (32) chromosomes then the number of chromosomes in ovum cell is.....

سؤال 3
الدرجة 1.00

Mass is considered from…  … physical quantity

سؤال 4
الدرجة 1.00

Within minutes of Big Bang, hydrogen gas was formed by a percentage of ...........%

سؤال 5
الدرجة 1.00

 The optical piece which forms laterally inverted (reversed) image and equal to the body is .......

سؤال 6
الدرجة 1.00

In Milky Way galaxy, the old stars (the older) gather in the….. of the galaxy.

سؤال 7
الدرجة 1.00

An object is placed at a distance of (8 cm) from a concave lens has a focal length (2 cm),Mention the properties of image formed

سؤال 8
الدرجة 1.00

Sudden violent nuclear reactions occur within the star which led to its explosion

سؤال 9
الدرجة 1.00

A moving car covers a distance of (.........) through (150 min.),  then its speed is 80 km/h

سؤال 10
الدرجة 1.00

A mirror, always forms a diminished image for the object.     

سؤال 11
الدرجة 1.00

A train moves at a speed (100 km/h), then it cover a distance of (40 km) within time .......... hours.

سؤال 12
الدرجة 1.00

Calculate the actual speed of the car whose relative speed is (80 km/h) relative to an observer moving in opposite direction at a speed of (30 km/h)

سؤال 13
الدرجة 1.00

The focal length of a lens  It is the distance between the principal Focus and the optical centre of the  lens .

سؤال 14
الدرجة 1.00

Reproduction by sporogony occurs in bread mould Fungus

سؤال 15
الدرجة 1.00
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