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اختبار الكتروني درس Graphic Representation of Moving in a Straight Line
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اختبار الكتروني درس Graphic Representation of Moving in a Straight Line
1
Distance-Time) graph for a regular motion at a constant speed is a.........
straight line parallel to time axis
straight line parallel to distance axis
strait line passing through the origin point
straight line cuts the time axis and the distance axis
2
For a car moves at a regular speed,the ratio d/t.......
increases
is constant
decreases
is doubled
3
Acceleration measurment unit is..............
metre/sec
metre.sec.
metre/sec2
metre.sec2
4
The object moves at a constant uniform speed,this means that......
it moves at zero acceleration
it moves at constant acceleration
it covers equal distance at unequal time
it covers unequal distance at equal time
5
A car moves at a speed 30m/sec,then its speed changes to 60m/sec .after three seconds,so the acceleration at which the car moves is..........
10m/sec
10m/sec2
20m/sec2
30m/sec
6
If an object at rest constancy moves regularly until its speed reaches 12m/sec.after three seconds from starting motion so,the acceleration equals.......m/sec2.
36
1/4
4
9
7
If a boat starts to move from rest till its speed becomes 2.5 m/sec.through 0.5sec. so, the acceleration of the moving boat is.......
25m/sec2
5m/sec2
0.2m/sec2
10m/sec2
8
The ratio between the final speed and the initial speed of an object moves at an acceleration motion is........
more than one
less than one
equal to one
equal to zero
9
The ratio between the final speed and the initial speed of an object moving in a straight line in a decelerating motion (a negative acceleration) is.......
more than one
less than one
equal to one
equal to zero
10
When the final speed of a moving object is less than its initial speed ,therefor the object motion is described as.........
uniform speed
accelerating motion
decelerating motion
uniform acceleration
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