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first term  first unit test  3rd prep
first term  first unit test  3rd prep
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تكرار
اختبار خاص بالمعلم:
Heba abdelzaher
إسمك
صفك
مدة الاختبار:
0:20:00
الوقت المتبقي:

:

:

1
The concept of the body movement means..........
its speed.
constancy of its position with the change in time.
the change in its position with the time.
its acceleration.
2
For a car moves at a regular speed, the ratio d/t...........
is doubled.
is constant.
increases.
decreases.
3
All of the following are scalar quantities except..........
time.
length.
mass.
force.
4
The two factors which can be used to describe the motion of a body are the..........
speed and time.
displacement and speed.
distance and time.
area and time.
5
From the examples of the scalar physical quantities are..........
the time and the speed.
the mass and the velocity.
the time and the weight.
the length and the acceleration.
6
Speed equals.......
distance ÷ time.
distance + time
distance  time
distance x time.
7
From the examples of the scalar quantities is the..........
velocity.
mass.
acceleration.
force.
8
If the body moves from rest at a uniform acceleration, so its final speed is determined from the relation..........
d/Δt
V1/Δt
a/Δt
a×Δt
9
When a moving object covers equal distances in equal periods of time. this means that the body moves with...........
relative speed.
uniform acceleration.
average speed.
uniform speed.
10
When an object speed increases, the movement is described as........
zero acceleration.
accelerating motion.
uniform speed.
decelerating motion.
11
......... is a vector quantity measured in m/sec.
Displacement
Speed
Velocity
Acceleration
12
If the uniform speed of a car is 72 km/h so. its speed (in m/s) equals..........
18 m/s.
40 m/s.
20 m/s.
25 m/s.
13
The object moves at a constant uniform speed, this means that..........
it covers unequal distances at equal time intervals.
it covers equal distances at unequal time intervals.
it moves at constant acceleration.
it moves at zero acceleration.
14
Displacement is a.........
vector quantity and its unit is m/sec.
Vector quantity and its unit is metre.
scalar quantity and its unit is metre.
vector quantity and its unit is kilogram.
15
A car moves at a regular speed equals 90 km/h, this means that the car covers a distance equals......... metres in 40 sec.
2000
4000
1500
1000
16
Acceleration measurement unit is...........
meter.sec
meter/sec
meter/sec²
meter. sec²
17
A body moved a distance of 20 metres in a straight line in the same direction so, the amount of its displacement is.........
20 m
120 m
80 m
40 m
18
speed equals 2 m/s. Which of the following equals the distance between his home and the school?..........
84 m.
48 m.
3.6 km.
1.2 km.
19
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.
equal to zero.
less than one.
equal to one.
20
Measurement unit of velocity is.............
m/sec.
m/sec²
m.sec.
m.
21
A runner ran the 1st 100 metres of a race in 8 seconds and the 2nd 100 metres in 12 seconds therefore, his average speed during the whole race is.........
10 m/s
12 m/s
20 m/s
8 m/s
22
The plane which flies against the wind direction........ than that which flies in the same direction of wind.
takes longer time and consumes more fuel
takes longer time
its speed increases
consumes more fuel
23
If the relative speed of a car is 50 km/h relative to an observer in a bus moves obs. in the same direction at 70 km/h, therefore the actual speed of this car is........
90 km/h.
120 km/h.
50 km/h.
40 km/h.
24
When car (A) covers the same distance as car (B) at the same time, this means that...........
car (A) is slower than car (B).
car (A) is faster than car (B).
car (B) is slower than car (A).
the two cars move at the same speed.
25
(Distancetime) graph for a regular motion at a constant speed is a...........
straight line passing through the origin point.
straight line parallel to the distance axis.
straight line cuts the time axis and the distance axis.
straight line parallel to time axis.
26
The scalar quantity is identified by its...........
magnitude and direction.
magnitude and velocity.
magnitude only.
direction only.
27
When car (A) covers smaller distance than car (B) at the same time span, therefore...........
the two cars move at the same speed.
there is no correct answer.
car (B) is faster than car (A).
car (A) is faster than car (B).
28
To determine the length, mass and time, we must know.........
the magnitude, the direction and the measuring unit.
the magnitude and the direction.
the direction and the measuring unit.
the magnitude and the measuring unit.
29
The distance covered by a moving body through a unit time is called the......... of the object.
speed
motion
weight
density
30
Which of the following physical quantities are considered as scalars only?..........
The radius and the area.
The mass and the force.
The displacement and the acceleration.
The force and the time.
31
Speed measurement unit is...........
Jolie
No correct answer
metre.second.
metre/second
32
.......... is the physical quantity that both its magnitude and direction are necessary for identifying it.
Scalar quantity
No correct answer
The quantity of matter
Vector quantity
33
The uniform acceleration means that the object speed......... by equal values through equal periods of time.
decreases only
doesn't change
increases only
increases or decreases
34
If the speedometer of a moving car points to 90 km/h, therefore after two hours the car covers..........
90km
180km
90m
180m
35
Acceleration is a...........
scalar quantity whose unit is m/s²
scalar quantity whose unit is m/s²
vector quantity whose unit is m/s²
vector quantity whose unit is m/s
36
A car moves at a speed 30 m/sec., then its speed changes to 60 m/sec. after three seconds so, the acceleration at which the car moves is.........
10 m/sec
30 m/sec
20 m/sec²
10 m/sec²
37
When the body covers equal distances at unequal intervals of time, this means that the body moves at.......
uniform speed.
nonuniform speed.
increasing acceleration.
decreasing acceleration.
38
If a boat starts to move from rest till its speed becomes 2.5 m/sec. through 0.5 sec. so, the acceleration of the moving boat is..........
22 m/sec²
5 m/sec²
16 m/sec²
25 m/sec²
39
The distance that is covered by a body in a certain direction is called.........
velocity.
acceleration.
distance.
displacement.
40
In case of motion that is described as movement at irregular speed, in this case, it is useful to refer to another term which is the........ speed.
average
scalar
vector
uniform
41
The ratio between the final speed and the initial speed of an object moves at an accelerating motion is...........
equal to zero
more than 1
equal to 1
less than 1
42
........... is considered from the fastest wild animals.
Lion
Cheetah
Elephant
Wolf
43
A car moving on a straight line covers a total distance (d) in a total time (t), the average speed of the car is given by........
V= h/km
V= dt
V= d/t
V= t/d
44
Movement is at a uniform acceleration...........
if the object's speed changes at equal values in equal time intervals.
no correct answer.
if the distance that the object covers changes at equal values in equal time intervals.
if the average speed equals the regular speed.
45
The average velocity is determined by the relation.........
displacement/time.
distance/time.
speed/time.
distance x time.
46
The speed of a moving object relative to an observer in another moving object is called ......... speed.
relative
irregular
uniform
average
47
Decelerating motion means the........
object speed decreases by time.
object is at rest.
object speed is constant.
object speed increases by time.
48
The shortest length covered by the object in a fixed direction is called........
displacement.
acceleration.
distance.
speed
49
Acceleration is the.........
change in distance in a unit time.
change in speed in a unit time.
no correct answer.
rate of change of distance relative to the speed.
50
If car (A) moves at speed 80 km/h and car (B) moves at speed of 50 km/h in the same direction, the speed of car (A) relative to a passenger in car (B) is ........... km/h.
110
60
30
90
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