1. Which type of friction occurs when an object moves through a liquid or gas?
A. sliding
B. static tuid
D. rolling
2. Which of the following refers to the energy generated when two surfaces
rub each other or objects have physical interaction with each other?
A. gravity
B friction Comotion D. reaction
3. What kind of friction is observed when the wheels on a bicycle roll against
the surface of a cemented road?
A static friction
B. sliding friction D. fluid friction
rolling friction
When you want to move an object, you must overcome the static friction.
4. Based on the idea presented above, static friction acts between the object
and the
A. wind that blows the object away
B. surface on which the object is resting
C. distance where the object has moved
D. gravity that pulls the object downward
5. The following situations describe how friction affects motion EXCEPT
A. Static friction prevents a notebook placed on the table from falling on
the floor.
B. Sliding friction occurs between the tip of the ballpen and the surface
of the paper as a person keeps writing notes.
C. Rolling friction affects the movement of a motorcycle as it runs along
a rocky road.
D. Fluid friction acts toward the direction of motion.
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Answer:
1.A
2.B
3.A
4.B
5.D
Explanation: