6th Grade > Physics
MOTION AND MEASUREMENTS OF DISTANCES MCQs
Total Questions : 98
| Page 10 of 10 pages
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 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
1 m=100×0.01 m=100 cm
:
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
1 m=100×0.01 m=100 cm
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. ->
rectilinear
:
A
:
A
Apple is falling straight to the ground. When a body is travelling in a straight line, the body is 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 B. ->
(I)-c (II)-d (III)-b (IV)-a
:
B
:
B
SI unit of mass and length are kilogram and meter respectively. The pendulum of the clock repeats its motion at a fixed interval of time. This type of motion is known as periodic motion. The point on the blade of the fan undergoes circular motion.
Answer: Option A. ->
True
:
A
:
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.
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