6. When an object rolls over a surface is produced.
A. Fluid friction B. Rolling friction C. Sliding friction
D. Static friction
7. Which of the following statement is true about rolling friction?
A. It is produced when an object is at rest.
B. It is produced when an object is moving in water
C. It is produced when an object is rolled in a surface.
D. It is produced when an object rub against each other.
8. Which is an example of an object that can produce rolling friction when rolls over a surface?
A. Ball B. Cabinet C. Shoe box
D. Table
9. Riding a bicycle and using of wheelbarrow (kariton) are examples of
A. Fluid friction B. Rolling friction C. Sliding friction
D. Static friction
10. Which of the following shows an example of rolling friction?
A. A kite flying.
C. A soccer ball rolling on the ground.
B. A paper boat floating.
D. A picture frame on the table.
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Answer:
6.B.
7.C.
8.A.
9.B.
10.C.
Explanation:
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