FRICTION-POST TEST-10 ITEMS

QuizÂ by Cherwin Sandow

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10 questions
• Q1
Friction is present in our everyday lives. Which of the following situations involves friction?
Falling debris in a construction site.
Diver falling in the pool.
Rolling ball in a smooth surface.
Dropping water on the faucet.
300s
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• Q2
Friction can be seen everywhere. Which of the following statements is true about friction?
It is the same as kinetic friction.
It always opposes motion.
It only exists when there is motion.
It acts on the same direction.
300s
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• Q3
A book on top of the table shows static friction. What do you think is static friction?
It is the least friction that keeps the book in motion.
It is the strongest friction that keeps the book in motion.
It is the strongest friction that keeps the book motionless.
It is the least friction that keeps the book motionless.
300s
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• Q4
Rubbing your hands show frictional force. What do you create when you rub your hands?
gravity
mass
volume
heat
300s
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• Q5
It will be difficult if there is no friction. Which of the following sentences best describes frictional force?
It occurs when two surfaces touch against each other.
It occurs when two surfaces do not touch against each other.
It occurs on one surface.
It only occurs between solid surfaces and liquid surfaces.
300s
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• Q6
A child accidentally slides on a wet floor. What causes the child to slide on the floor?
volume
friction
air resistance
gravity
300s
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• Q7
The effect of friction can be desirable or undesirable. Which of the following is the undesirable effect of friction?
It helps in converting one form of motion into another.
It allows you to grip things.
It converts energy to heat and noise.
It reduces speed of a moving vehicle.
300s
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• Q8
Force is a push or pull that acts on an object. Which of the following is a force that opposes motion?
friction
gravity
acceleration
mass
300s
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• Q9
Friction plays an important role in your life. Which of the following statements is true?
It is only present if gravity is also present.
It does not affect the motion of an object.
It slows down or stops objects in motion.
It pulls all objects towards the center of the Earth.
300s
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• Q10
To increase machine effectiveness, you apply lubricants. Which of the following cannot be used as lubricant?
wax
oil
alcohol
grease
300s
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