Physics
Grade-9
Easy
Question
Which of the following is NOT exhibited by a rotating fan?
- Circular motion
- Rotatory motion
- Periodic motion
- Rectilinear motion
Hint:
Oscillatory motion is the to and fro motion of a particle which is repeated over a fixed interval of time.
The correct answer is: Rectilinear motion
The blades of the fan describe the circular motion. During the rotation, the different particles repeat their motion about a certain point, in a fixed interval of time, exhibiting periodic motion.
Oscillatory motion is the to and fro motion of a particle which is repeated over a fixed interval of time.
Fan does not shows oscillatory motion.It shows periodic motion not oscillatory motion.
Fan does not shows to and fro position about a mean position.
Fan does not shows oscillatory motion.It shows periodic motion not oscillatory motion.
Fan does not shows to and fro position about a mean position.
Related Questions to study
Physics
A motion in which a body moves about a fixed axis without changing its position is called:
A motion in which a body moves about a fixed axis without changing its position is called:
PhysicsGrade-9
Physics
Which among the following shows circular motion?
Which among the following shows circular motion?
PhysicsGrade-9
Physics
Which of the following is not an example of rotational motion?
Which of the following is not an example of rotational motion?
PhysicsGrade-9
Physics
Which of the following does not show oscillatory motion?
Which of the following does not show oscillatory motion?
PhysicsGrade-9
Physics
The rectilinear motion is represented by which one of the given examples?
The rectilinear motion is represented by which one of the given examples?
PhysicsGrade-9
English-2
Select topic sentence of below paragraph.
In the developing world, 1.1 billion people still do not have access to safe drinking water, 2.6 billion do not have access to adequate sanitation services, and waterborne diseases are responsible for more than 1.6 million deaths each year (mostly in children under five). Water is often too expensive or inaccessible to the poorest members of society in developing countries, while the wealthy have it piped into their homes. Furthermore, due to the infrastructure used to control water, entire seas are being lost, rivers are drying up, millions of people have been displaced to make room for reservoirs, groundwater aquifers are being pumped down, and water disputes have raised tensions from local to international levels. Fresh water is a scarce resource in many parts of the world, and it is expected to become even more so as the twenty-first century progresses.
Select topic sentence of below paragraph.
In the developing world, 1.1 billion people still do not have access to safe drinking water, 2.6 billion do not have access to adequate sanitation services, and waterborne diseases are responsible for more than 1.6 million deaths each year (mostly in children under five). Water is often too expensive or inaccessible to the poorest members of society in developing countries, while the wealthy have it piped into their homes. Furthermore, due to the infrastructure used to control water, entire seas are being lost, rivers are drying up, millions of people have been displaced to make room for reservoirs, groundwater aquifers are being pumped down, and water disputes have raised tensions from local to international levels. Fresh water is a scarce resource in many parts of the world, and it is expected to become even more so as the twenty-first century progresses.
English-2Grade-9
English-2
Select topic sentence of below paragraph.
According to popular belief, while the dog is man's best friend, the coyote is his worst enemy. The coyote's bad reputation stems from his fondness for small animals; he hunts at night and is especially destructive to sheep, young pigs, and poultry. However, it is sometimes beneficial to coyotes. If valuable farm animals are protected, the coyote will frequently free the property of other animals, such as rabbits, which are destructive to the crops and certain trees. He is especially useful in keeping the rodent population under control. Where coyotes have been allowed to do their work without being harassed, ranchers and fruit growers have found them to be so valuable that they would not shoot them any more than they would shoot their dogs.
Select topic sentence of below paragraph.
According to popular belief, while the dog is man's best friend, the coyote is his worst enemy. The coyote's bad reputation stems from his fondness for small animals; he hunts at night and is especially destructive to sheep, young pigs, and poultry. However, it is sometimes beneficial to coyotes. If valuable farm animals are protected, the coyote will frequently free the property of other animals, such as rabbits, which are destructive to the crops and certain trees. He is especially useful in keeping the rodent population under control. Where coyotes have been allowed to do their work without being harassed, ranchers and fruit growers have found them to be so valuable that they would not shoot them any more than they would shoot their dogs.
English-2Grade-9
English-2
Select topic sentence of below paragraph.
Because electronic computers are now used for data processing, the general public believes it is a mysterious, complicated science and that computers are giant brains. Both of these assumptions are incorrect. A computer is essentially a high-speed adding machine that performs the functions that are programmed into it. If the input data is even slightly changed, the computer will not be able to function until it is programmed to accept the changes. The business operations it performs are impressive only because of the extremely fast manipulation speed, but the majority of these operations have been used for decades. In contrast to humans, computers can perform repetitive calculations without becoming tired or bored.
Select topic sentence of below paragraph.
Because electronic computers are now used for data processing, the general public believes it is a mysterious, complicated science and that computers are giant brains. Both of these assumptions are incorrect. A computer is essentially a high-speed adding machine that performs the functions that are programmed into it. If the input data is even slightly changed, the computer will not be able to function until it is programmed to accept the changes. The business operations it performs are impressive only because of the extremely fast manipulation speed, but the majority of these operations have been used for decades. In contrast to humans, computers can perform repetitive calculations without becoming tired or bored.
English-2Grade-9
English-2
The main idea of a paragraph is introduced by what?
The main idea of a paragraph is introduced by what?
English-2Grade-9
English-2
Good paragraphs should do what?
Good paragraphs should do what?
English-2Grade-9
English-2
A paragraph can be defined as what?
A paragraph can be defined as what?
English-2Grade-9
English-2
Topic sentences can be anywhere in a paragraph, but they are most often
Topic sentences can be anywhere in a paragraph, but they are most often
English-2Grade-9
English-2
The topic sentence contains the
The topic sentence contains the
English-2Grade-9
English-2
A group of sentences about one main idea is a
A group of sentences about one main idea is a
English-2Grade-9
English-2
The topic sentence is:
The topic sentence is:
English-2Grade-9
