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If the speedometer of a car points to 90 km/h therefore after 2 hours the car covers

• 180 m

• 180 km

• 90 km

• 150 km

An object started its movement from rest and its speed changed to 36 km/h. in 10 seconds, calculate the body acceleration and state its type

• 1 m/sec , it's type accelerating motion

• 1 m/sec² , it's type decelerating motion

• 1 k.m/h , it's type accelerating motion

• 1 m/sec² , it's type accelerating motion

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

• plane mirror

• concave mirror

• convex mirror

• non smooth mirror

if the object is put at distance greater than the focal length but less than double the focal length, the image properties will be.................

• real, inverted and magnified

• real, inverted and diminished

• virtual, erect and magnified

• real, inverted and same size

theory assumed that the origin of the solar system was from the explosion of the expanded part of the Sun forming a gaseous line of a great length from the Sun due to a huge star approached to it.

• Crossing star

• Modern

• Big Bang

a light year is a measurement of

• speed

• distance

• time

• space

Force is a---------- physical quantity, while mass is a ------------physical quantity.

If the speed of a car is 36 km/h, it means that its speed is --------------m/s

The vision defect which is due to a shortness in the radius of the ball is called

------------

The contact lenses are used instead of the -----------and it is made of -------