An object was placed between a convex lens whose focal length is 6 cm. and a plane mirror.Complete the following statement:
The image formed of the object by a plane mirror at a distance of .... ...... cm. from it's surface
24
12
6
4
Average speed. It is represent the regular speed by which the object moves. equal distances at same period time
True
False
The speed of a moving object relatively to a constant or a moving observer
velocity
regular speed
irregular speed
Relative speed
The distance between the image of the object which is formed by a convex lens and the image which is formed by a plane mirror equal… … cm
48
The image formed of the object by a convex lens at a distance of ………..cm. from it's face
3
The earliest life forms began to appear on the Earth after….. million years from the Big Bang.
17000
12000
3000
15000
A train starts to move at 6 O'clock in the morning. Then what is the time of arrival if it moves at speed of 40 Km/h to cover the distance of 200 Km
6 Am
5 Am
11 Am
The ratio between the final speed and the initial speed of an object moves at an accelerating motion is.............
less than 1
equal to 1
more than 1
equals to zero
The car which begins its movement from rest, moves at ..........
uniform speed
positive acceleration
negative acceleration
The spindle fibers are formed in the plant cell from the condensing the cytoplasm in the 2 cell poles
Contact lenses can stick to eye iris and can be removed easily
The mirror, whose reflecting surface is a part of the inner surface the sphere.
concave mirror
convex mirror
The person with normal vision sees the near objects clearly at a distance not less than.....
25 cm
10 m
2 cm
6 m
A light ray that falls on a plane mirror as in the figure it reflects, where the angle of reflection equals……..
30°
120°
90°
60°
If the uniform speed of a car is (90 km/h). This means that the car covers a distance equals…… metres in 40 sec.
2000
4000
2600
1000
............... is the actual length of the path that a moving object takes from the starting point of movement to the end point
Acceleration
Distance
Speed
The two factors which can be used to describe the motion of a body are the… .. and …
distance , mass
mass , time
distance , time