Science - Motion and Measurement of Distances
Exam Duration: 45 Mins Total Questions : 30
'X' is the comparison of an unknown quantity with a known quantity. Identify 'X'.
- (a)
Pendulum
- (b)
Measurement
- (c)
Motion
- (d)
Device
Which of the following is a standard unit of measurement?
- (a)
Cubit
- (b)
Hand span
- (c)
Metre
- (d)
Palm span
What is the S.I unit of length?
- (a)
Millimetre
- (b)
Centimetre
- (c)
Metre
- (d)
Kilometre
What fraction of a metre is 1 mm?
- (a)
Thousand
- (b)
Hundred
- (c)
Thousandth
- (d)
Hundredth
Identify the ascending order of the magnitudes of length.
- (a)
m, km, mm
- (b)
cm, m, mm
- (c)
mm, m, km
- (d)
cm, km, m
On what factors does the choice of a length-measuring device depend?
- (a)
The type of measurement
- (b)
The type of device
- (c)
The type of surface
- (d)
The type of metric system
Find the length of the object in the figure given below
- (a)
3.4 units
- (b)
3.2 units
- (c)
3.5 units
- (d)
3.3 units
Which type of motion is represented by the plastic ruler shown below?
- (a)
Circular
- (b)
Translatory
- (c)
Rotatory
- (d)
Vibratory
How many millimetres make a metre?
- (a)
1000 mm
- (b)
10,000 mm
- (c)
1,00,000 mm
- (d)
100 mm
A test tube measures 125 mm in length. Which of the following is also its correct length?
- (a)
1.25 cm
- (b)
0.125 m
- (c)
1.25 m
- (d)
12.5 m
Which of the following exhibits rotatory motion but not translatory motion?
- (a)
A ball delivered by a spin bowler
- (b)
A drill that bores a piece of wood
- (c)
A spinning wheel
- (d)
The rear wheel of a moving bicycle
Which type of motion do the wheels of a moving car exhibit?
- (a)
Rectilinear
- (b)
Curvilinear
- (c)
Rotatory and translatory
- (d)
Circular and translatory
A boy plucked the string of a violin. Which type of motion does it exhibit?
- (a)
Rectilinear
- (b)
Circular
- (c)
Vibratory
- (d)
Both (B) and (C)
What type of motion does a rolling ball exhibit on the ground?
- (a)
Rotatory motion
- (b)
Translatory motion
- (c)
Periodic motion
- (d)
Both (A) and (B)
Anil's father has three different wires.
Which of the following options shows the arrangement of the wires from the longest to the shortest?
- (a)
K \(\rightarrow\) J \(\rightarrow\) L
- (b)
K \(\rightarrow\) L \(\rightarrow\) J
- (c)
J \(\rightarrow\) L \(\rightarrow\) K
- (d)
L \(\rightarrow\) J \(\rightarrow\) K
Which unit is used to measure distances between cities?
- (a)
Kilometre
- (b)
Metre
- (c)
Centimetre
- (d)
Millimetre
Which of the following is in the increasing order of magnitude of length/distance?
- (a)
m, cm, km, mm
- (b)
mm, cm, m, km
- (c)
cm, mm, m, km
- (d)
mm, m, cm, km
Which of the following is NOT the correct measurement of S.I. unit?
- (a)
5 m of cloth
- (b)
20 seconds of time
- (c)
Surface area of 25 cm2
- (d)
2 kg of cooking oil
The length of a tube is 5643 mm. What would be its length when expressed in S.I.units?
- (a)
5 m
- (b)
56 cm
- (c)
5.3 m
- (d)
5.643 m
Which of the following show movements without changing their place?
- (a)
Only (i) and (ii)
- (b)
Only (ii) and (iii)
- (c)
Only (i) and (iii)
- (d)
All the three
Identify the incorrect statement from the following.
- (a)
Curvilinear and rectilinear motions together form translatory motion.
- (b)
Rotatory motion is always oscillatory.
- (c)
Motion of a stone dropped from a roof is rectilinear.
- (d)
Motion of a simple pendulum is periodic.
The thickness of a dozen coins on a metre scale was found to be 18 cm. What is the thickness of one coin?
- (a)
15 cm
- (b)
1.2 cm
- (c)
1.8 mm
- (d)
15 mm
Varun strikes a drum which starts vibrating. Identify the motion it exhibits.
- (a)
Oscillatory
- (b)
Rotatory
- (c)
Translatory
- (d)
Both (B) and (C)
Which one of the following is accepted as a set of standard unit of measurement by scientists all over the world?
- (a)
Metric system
- (b)
Yard system
- (c)
Foot system
- (d)
International System of Units
1 km has_______________mm.
- (a)
1000
- (b)
100000
- (c)
10000
- (d)
1000000
Which one of these is not necessary for correct measurements?
- (a)
Choosing a suitable device.
- (b)
In order to measure length, the scale should be placed in contact with the object along its length.
- (c)
The eye must be exactly in front of the point where the measurement is to be taken.
- (d)
None of these.
Which of these is not an example of circular motion?
- (a)
movement of an electric fan.
- (b)
movement of a point marked on the blade of an electric fan.
- (c)
movement of a water ball tied to a string and whirled around.
- (d)
both 'b' and 'c'.
Which one of these show oscillatory motion?
- (a)
movement of a swing
- (b)
movement of a pendulum of a clock
- (c)
both 'a' and 'b'
- (d)
movement of the ear drum when sound waves fall on it
Select the right match
Column I | column II |
i) Movement of moon round the earth | A) rest |
ii) State in which there is no change in position with time and with respect to surroundings | B) vibratory motion |
iii) When some parts of a body move to and fro repeatedly | C) circular motion |
- (a)
i-C; ii-A; iii-B
- (b)
i-B; ii-A; iii-C
- (c)
i-A; ii-B; iii-C
- (d)
i-A; ii-C; iii-B
An elastic measuring tape is not used for measuring distance. This is because
- (a)
elastic tape is stretchable.
- (b)
the reading will keep changing.
- (c)
there will be lots of errors.
- (d)
all of these