Passage IV

Some students conducted experiments using different brands of adhesive tape, one kind each of paper and plastic, a board, and a spring scale.

Experiment 1

A student stuck one end of a piece of tape onto the edge of a board that was wrapped with paper. The other end of the tape was clamped to a spring scale, as shown in Figure 1.

While one student held the board, a second student pulled the spring scale until the tape came off the paper wrapping; a third student recorded the force in newtons, N, indicated on the spring scale at the moment the tape came off the paper wrapping.

The procedure was repeated for 3 different brands of tape; each brand of tape came in many different widths, of which 2 or 3 were tested. The results are shown in Table 1.

Experiment 2

The students performed an experiment similar to Experiment 1, except that the paper wrapping was replaced by a plastic wrapping. The results are shown in Table 2.

21. Based on the average results of Experiments 1 and 2, which of the following brands of tape adhered better to the paper than to the plastic?

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

The question asks to adhere better to the paper than to the plastic, so comparing the data in table 1 and table 2, it is found that under the same width, it takes more force to remove the tape of X brand, so X adheres better to paper;

Looking at the tape of brand Y, whether it is paper or plastic, the force used is the same, so Y is excluded; because the width of brand Z is different in the two experiments, it cannot be compared. Can only choose A. Brand X