Physics
Grade-9
Easy
Question
Which is the odd one out?
- Climbing
- Riding
- Walking
- Stopping vehicles
Hint:
Stopping a vehicle is a disadvantage of friction which makes the moving vehicle to stop.
The correct answer is: Stopping vehicles
Stopping a vehicle is the odd one out.
- Climbing, walking, and riding are done by using the force from the energy of our body.
- Stopping a vehicle needs a strong resisting force.
- It is different
from the other activities since it is a disadvantage of friction.
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Statement I: We can live very happily if friction is not present in nature.
Statement II: Airplane shape is streamlined to reduce frictional force.
Statement I: We can live very happily if friction is not present in nature.
Statement II: Airplane shape is streamlined to reduce frictional force.
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In which of the column are the activities categorized correctly according to the advantages and disadvantages of the role of friction in them?
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______ of friction is seen in the image.
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______ of friction is seen in the image.
______ of friction is seen in the image.
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______ of friction is seen in the image.
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“We do not need friction force to hold different objects with our hands.” This statement is ____.
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“Damage of machines is one of the disadvantages of friction.” This statement is ____.
“Damage of machines is one of the disadvantages of friction.” This statement is ____.
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“Friction between the moving parts of machines causes a rise in their temperature and damage to machines.” This statement is ____.
“Friction between the moving parts of machines causes a rise in their temperature and damage to machines.” This statement is ____.
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“Friction is not necessary for walking.” This statement is ____.
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Which is the odd one out?
Which is the odd one out?
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Which is the odd one out?
Which is the odd one out?
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Which is the odd one out?
Which is the odd one out?
PhysicsGrade-9
