Answer the questions below. Write your answers on your answer sheet.

1. Based on your answer in Table 1, between the crumpled paper and the

uncrumpled one, which object reached the floor first?

A. crumpled paper

B. plain paper

2. Does air affect the falling of the two papers? Why?

A. Yes, the air opposes the movement of the two papers.

B. No, the air does not oppose the movement of the two papers.

3. Which object experienced the greater opposing force of the air? Why?

A. The crumpled paper because it has a small surface area in contact with the

air.

B. The plain paper because of its wide or big surface area in contact with the

air.

4. How does air friction affect the movement of falling objects? Choose the correct

answer inside the parenthesis.

Air friction (slows down, increases) the motion of falling objects.

What is It

In the two activities that you have conducted, you have observed that friction

affects the movement of the ball, box, and falling pieces of paper. You were also able

to identify the factors affecting it.

In Activity 1, the ball and the box covered different distances. The ball traveled

longer distance than the box. It is because of their different shapes or surface area

in contact with the floor. The surface area of the ball in contact with the floor is

smaller, while the box has a bigger or greater surface area.

Objects with bigger surface areas, like a box, are easier to stop; thus, it travels

a shorter distance because greater friction acts on it. Objects with smaller surface

areas, like a ball, are harder to stop; thus, it travels a longer distance because lesser

friction acts on it. Therefore, surface area of contact affects friction. The bigger or

greater the surface area of objects in contact with the floor, the greater the friction.

The smaller surface area of objects in contact with the floor, the lesser the frictionAnswer the questions below. Write your answers on your answer sheet.

1. Based on your answer in Table 1, between the crumpled paper and the

uncrumpled one, which object reached the floor first?

A. crumpled paper

B. plain paper

2. Does air affect the falling of the two papers? Why?

A. Yes, the air opposes the movement of the two papers.

B. No, the air does not oppose the movement of the two papers.

3. Which object experienced the greater opposing force of the air? Why?

A. The crumpled paper because it has a small surface area in contact with the

air.

B. The plain paper because of its wide or big surface area in contact with the

air.

4. How does air friction affect the movement of falling objects? Choose the correct

answer inside the parenthesis.

Air friction (slows down, increases) the motion of falling objects.

What is It

In the two activities that you have conducted, you have observed that friction

affects the movement of the ball, box, and falling pieces of paper. You were also able

to identify the factors affecting it.

In Activity 1, the ball and the box covered different distances. The ball traveled

longer distance than the box. It is because of their different shapes or surface area

in contact with the floor. The surface area of the ball in contact with the floor is

smaller, while the box has a bigger or greater surface area.

Objects with bigger surface areas, like a box, are easier to stop; thus, it travels

a shorter distance because greater friction acts on it. Objects with smaller surface

areas, like a ball, are harder to stop; thus, it travels a longer distance because lesser

friction acts on it. Therefore, surface area of contact affects friction. The bigger or

greater the surface area of objects in contact with the floor, the greater the friction.

The smaller surface area of objects in contact with the floor, the lesser the friction​