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Q 1/10
Score 0
The ball rolled on the grassy surface of the park and suddenly stop. How does friction affect the motion of the ball?
30
Friction opposes the direction of the ball to change its direction.
Friction decreases the time of the ball to take farther distance.
Friction affects the ability of the ball to take more rolling.
Friction slows down the rolling of the ball and prevents the ball to move farther.
Q 2/10
Score 0
Which of the following is true.
I. Friction slows down the a moving object.
II. Smooth surface has more friction.
III. Objects moves slowly on the rough surface.
IV. Friction is not present in a smooth surface
30
I, IV
I, III , IV.
II, III
I, III
10 questions
Q.
The ball rolled on the grassy surface of the park and suddenly stop. How does friction affect the motion of the ball?
1
30 sec
Q.
Which of the following is true.
I. Friction slows down the a moving object.
II. Smooth surface has more friction.
III. Objects moves slowly on the rough surface.
IV. Friction is not present in a smooth surface
2
30 sec
Q.
How is brake useful?
3
30 sec
Q.
The rougher the surface the greater the friction.
Which of this example will support the above statement.
4
30 sec
Q.
How does friction become so useful during the prehistoric time.
5
30 sec
Q.
The road sign says “Slippery when wet”. To avoid accident, what will the driver do?
6
30 sec
Q.
Which of the following is the easiest way to move the refrigerator from one place of your
house to another?
7
30 sec
Q.
Which of the following shows that the lesser the friction the useful it is?
8
30 sec
Q.
Rusty screws are difficult to remove. What will you do to remove it?
9
30 sec
Q.
The court where you are about to play basketball is wet? What will you do and why?
