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TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
Published on: 03/08/2018
Some of the important one mark questions are prepared from this chapter Kinematics.
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Download Tamil Nadu 11th Standard Physics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Physics Test1.
Spreading smoke of incense stick is an example of ___________.
one dimensional motion
two dimensional motion
three dimensional motion
none
2.
If the coordinate axes (x, y, z) are drawn in anticlockwise direction then the co-ordinate system is known as ______________.
Cartesian coordinate system
right-handed coordinate system
left-handed coordinate system
cylindrical coordinate system
3.
The branch of mechanics which deals with the motion of objects without taking force into account is _______________.
kinetics
dynamics
kinematics
statics
4.
The radius of the earth was measured by _____________.
Newton
Eratosthenes
Galileo
Ptolemy
5.
The velocity of train increases uniformly from 20 km/h to 60 km/h in 4 hours. The distance travelled by the train during this period is _____________.
160km
180km
100km
120km
6.
The water drop falls at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap at instant the first drop touches the ground. How far above the ground is the second drop at that instant?
3.75m
4.00m
1.25m
2.50m
7.
The acceleration of a particle is increasing linearly with time t as bt, The particle starts from origin with an initial velocity vo. The distance travelled by the particle in time t will be ________________.
\(v_ot+{1\over 3}bt^2\)
\(v_ot+{1\over 2}bt^2\)
\(v_ot+{1\over 6}bt^2\)
\(v_ot+{1\over 3}bt^3\)
8.
If a car at rest accelerates uniformly to a speed of 144 km/h in 20 sec, it covers a distance of _______________.
1440cm
2980cm
20m
400m
9.
Motion of a particle is given by equation s = (3t3+7t2+14t+8)m. The value of acceleration of the particle at t=1 sec is _____________.
10m/s2
32m/s2
23m/s2
16m/s2
10.
A particle is thrown vertically upward. Its velocity at half of the height is 10 m/s, then the maximum height attained by it __________ (g = 10 m/s2)
8m
6m
10m
16m
11.
A ball is thrown vertically upward. It has a speed of 10 m/sec when it has reached one half of its maximum height. How high does the ball rise?(Take g = 10 m/s2)
10 m
5 m
15 m
20 m
12.
Two bodies A (of mass 1 kg) and B (of mass 3 kg) are dropped from heights of 16 m and 25 m, respectively. The ratio of the time taken by them to reach the ground is _____________.
4/5
5/4
12/5
5/12
13.
The position x of a particle with respect to time t along x-axis is given by x = 9t2 + t3 where x is in metres and t in seconds. What will be the position of this particle when it achieves maximum speed along the +x direction?
54m
81m
24m
32m
14.
A car moves from X to Y with a uniform speed Vu and returns to Y with a uniform speed vd The average speed for this round trip is ___________.
\(\sqrt{v_uv_d}\)
\({v_dv_u\over v_d+v_u}\)
\({v_u+v_d\over 2}\)
\({2v_dv_u\over v_d+v_u}\)
15.
Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time t1. On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time f2. The time taken by her to walk upon the moving escalator will be _______________
\({t_1t_2\over t_2-t_1}\)
\({t_1t_2\over t_2+t_1}\)
t1-t2
\({ t_2+t_1\over 2}\)
16.
An aeroplane moving horizontally with a speed of 180 kmhr-1 drops a food packet while flying at a height of 490 m. while horizontal range of the food packet is _____________.
500m
200m
650m
925m
17.
A lift, in which a boy is standing, moves upwards with a constant speed of 9.8 ms-1. If the boy drops a coin from a height of 2.5 m, the time taken by it to reach the floor of the lift is ___________ (g = 10 ms·-2)
\(\sqrt{2s}\)
\({1\over \sqrt{3}}s\)
\(\sqrt{3s}\)
\({1\over\sqrt{2}}s \)
18.
A stone projected vertically upwards with a speed of 15 ms-1 from the top of a tower strikes the base of the tower in 5s. The height of the tower is (g = 10 ms-2)
20m
45m
50m
35m
19.
The speed of a train is reduced from 60 kmh-1 to 15 kmh-1 in a distance of 450 m. If the retardation is uniform is the distance, it will travel further before coming to rest is _______________.
25m
30m
15m
20m
20.
The distance covered by an object falling down freely under gravity in the last second of its motion is equal to the distance covered by it during the first five seconds of its motion. The time (in seconds) taken by the object to reach the ground is ______________.
8
5
13
10
21.
An object accelerates from rest at a constant rate 'a' for some time and afterwards, it decelerates at a constant, rate 'b' to come to rest If the total time elapsed is 't', the maximum velocity acquired by the object is _________________.
\(abt\over(a+b)\)
\({(a+b)t\over ab}\)
\(t\over (a+b)\)
\((a+b)t\)
22.
A passenger in the moving train throws a coin. If the coin falls in front of him, train must be moving with ________________.
uniform speed
acceleration
deceleration
uniform velocity
23.
A passenger in the moving train tosses a coin. If the coin falls behind him, train must be moving with _____________.
acceleration
deceleration
uniform speed
all the above
24.
Choose the correct statement:
motion is an absolute term but rest is relative
motion is a relative term but rest is an absolute
both motion and rest are relative
both motion and rest are absolute
25.
If x = a cost is the displacement in time t then, acceleration is ____________
a cost
-a cost
a sint
-a sint
26.
The numerical ratio of average velocity to average speed is ________________.
<1
=1
≤1
=0
27.
Slope of velocity-time graph at any instant gives ______________.
speed
acceleration
retardation
velocity
28.
Slope of displacement-time graph at any instant gives ____________.
speed
acceleration
retardation
velocity
29.
Retardation means ____________.
decreases with time
increases with time
increases and decreases
decreases and increases
30.
Velocity is said to be variable, if ______________.
un equal displacement occur in equal intervals of time
direction of motion changes
both rate of motion and direction changes
all the above
31.
Choose the motion in two dimension from the following.
Motion of a train along a straight railway track
An object falling freely under gravity close to the Earth.
A particle moving along a curved path in a plane.
Flying of a kite on a windy day.
32.
The horizontal range of a projectile fired at an angle of 15° is 50 m. If it is fired with the same speed at angle of 45°, its range will be
125 m
75 m
100 m
150 m
33.
Distance is a scalar quantity and ______________ is a vector.
Speed
Length
Time
Displacement
34.
The angle between A i +j and B = i - j is ______________.
45°
90°
-45°
180°
35.
Which one of the following statement is true?
A scalar quantity is conserved in a process
A scalar quantity does not vary from one point to another in apace
A scalar quantity can never take -ve values
A scalar quantity has only magnitude and no direction.
36.
If one object is dropped vertically downward and another object is thrown horizontally from the same height, then the ratio of vertical distance covered by both objects at any instant t is
1
2
4
0.5
37.
A ball is projected vertically upwards with a velocity v. It comes back to ground in time t. Which v-t graph shows the motion correctly?
38.
If a particle has negative velocity and negative acceleration, its speed
increases
decreases
remains same
zero
39.
Which one of the following Cartesian coordinate systems is not followed in physics?
1.
(c)
three dimensional motion
2.
(b)
right-handed coordinate system
3.
(c)
kinematics
4.
(b)
Eratosthenes
5.
(a)
160km
6.
(a)
3.75m
7.
(c)
\(v_ot+{1\over 6}bt^2\)
8.
(d)
400m
9.
(b)
32m/s2
10.
(c)
10m
11.
(a)
10 m
12.
(a)
4/5
13.
(a)
54m
14.
(d)
\({2v_dv_u\over v_d+v_u}\)
15.
(b)
\({t_1t_2\over t_2+t_1}\)
16.
(a)
500m
17.
(b)
\({1\over \sqrt{3}}s\)
18.
(d)
35m
19.
(c)
15m
20.
(c)
13
21.
(a)
\(abt\over(a+b)\)
22.
(c)
deceleration
23.
(a)
acceleration
24.
(c)
both motion and rest are relative
25.
(b)
-a cost
26.
(c)
≤1
27.
(b)
acceleration
28.
(d)
velocity
29.
(a)
decreases with time
30.
(d)
all the above
31.
(c)
A particle moving along a curved path in a plane.
32.
(c)
100 m
33.
(d)
Displacement
34.
(b)
90°
35.
(d)
A scalar quantity has only magnitude and no direction.
36.
For a free falling body, initial vertical downward velocity = 0
For a body thrown horizontally with a velocity, initial vertical downward velocity = 0
Since both having same initial vertical downward velocity they cover equal vertical distance at any instant
37.
Initially velocity has maximum value and at maximum height velocity becomes zero. After that the velocity becomes negative
38.
Velocity and acceleration are in the same direction: So speed increases.
39.
Answers (a), (b) and (c) are all anticlockwiseand answer (d) alone is in the clockwise direction
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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