6th Grade > Physics
MOTION AND MEASUREMENTS OF DISTANCES MCQs
Total Questions : 98
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Answer: Option D. -> Another passing bus
:
D
An object is in motion or at rest depending on the person who is observing it.
The objectswhich are moving with respect to the ground, are also moving with respect to Harshit. Hence, only another bus passing by will be moving with respect to him.
:
D
An object is in motion or at rest depending on the person who is observing it.
The objectswhich are moving with respect to the ground, are also moving with respect to Harshit. Hence, only another bus passing by will be moving with respect to him.
Answer: Option A. -> rectilinear
:
A
Apple is falling straight to the ground. When a body is travelling in a straight line, the bodyis said to be in a state of rectilinear motion.
:
A
Apple is falling straight to the ground. When a body is travelling in a straight line, the bodyis said to be in a state of rectilinear motion.
Answer: Option B. -> False
:
B
When an object travels in a straight line, it is in linear motion. Here the troop of soldiers move in a straight line. So, they are in a state of linear motion.
When an object spins about an axis, it is termed as rotational motion. For example, the rotation of the Earth about its own axis.
:
B
When an object travels in a straight line, it is in linear motion. Here the troop of soldiers move in a straight line. So, they are in a state of linear motion.
When an object spins about an axis, it is termed as rotational motion. For example, the rotation of the Earth about its own axis.
Answer: Option D. -> Trees outside the train
:
D
An object is in motion or at rest depending on the person who is observing it.
The train and all parts of the train is at rest with respect to you because you are also part of the train. The trees outside the train are in motion as seen by you.
:
D
An object is in motion or at rest depending on the person who is observing it.
The train and all parts of the train is at rest with respect to you because you are also part of the train. The trees outside the train are in motion as seen by you.
Answer: Option C. -> Both a metre scale and a thread
:
C
Virat cannot use a metre scale or a straight rod alone, as it cannot be bent along the curve. A thread and a metre scale can be used to measure the required length as shown in the diagram below. A thread is taken and aligned with the curved steel rod. The end points are marked on the thread. Next, the length of the thread between the marked points is measured by a metre scale after straightening it.
:
C
Virat cannot use a metre scale or a straight rod alone, as it cannot be bent along the curve. A thread and a metre scale can be used to measure the required length as shown in the diagram below. A thread is taken and aligned with the curved steel rod. The end points are marked on the thread. Next, the length of the thread between the marked points is measured by a metre scale after straightening it.
Answer: Option A. -> True
:
A
Motion that repeats itself after a fixed interval of time is known as periodic motion.
The earth takes approximately the same time, i.e. 365 days to complete one revolution around the sun. Hence, it is a periodic motion.
:
A
Motion that repeats itself after a fixed interval of time is known as periodic motion.
The earth takes approximately the same time, i.e. 365 days to complete one revolution around the sun. Hence, it is a periodic motion.
Answer: Option A. -> metric system
:
A
In 1790, the French created a standard unit of measurement called the metric system.
Metric system was first introduced in France but was widely accepted by both the world scientific community and many countries as the system of measurement.
:
A
In 1790, the French created a standard unit of measurement called the metric system.
Metric system was first introduced in France but was widely accepted by both the world scientific community and many countries as the system of measurement.
Answer: Option B. -> False
:
B
Prefix is used with units to express relatively small or big quantity as compared to the base unit. Some prefix values are mentioned below:
Prefix Symbol
Prefix name
Value
k
kilo
1000
h
hecto
100
d
deci
0.1
c
centi
0.01
m
milli
0.001
1m=100×0.01m=100cm
:
B
Prefix is used with units to express relatively small or big quantity as compared to the base unit. Some prefix values are mentioned below:
Prefix Symbol
Prefix name
Value
k
kilo
1000
h
hecto
100
d
deci
0.1
c
centi
0.01
m
milli
0.001
1m=100×0.01m=100cm
Answer: Option C. ->
Roadways, Waterways, Airways
:
C
Roadways were the earliest mode of transportation followed by waterways and airways. The steam engine and the railroad were invented in the 19th century. Later, motorised boats and ships were developed as a means of water transport. The Wright brothers invented the aeroplane and gave the world another means of transport in the early 20th century.
:
C
Roadways were the earliest mode of transportation followed by waterways and airways. The steam engine and the railroad were invented in the 19th century. Later, motorised boats and ships were developed as a means of water transport. The Wright brothers invented the aeroplane and gave the world another means of transport in the early 20th century.
Answer: Option B. ->
Airways
:
B
:
B
Airways takes minimum time to travel from one place to another. Aeroplanes can travel at very high speeds and consume less time for transportation.