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.

20. In Experiment 2, had Brand X tape in a 4.0 cm width been tested, the force required to remove the tape from the plastic wrapping would have been closest to:

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

Look at table 2, when using X tape with a width of 3.0 cm, a force of 5.0N is required to tear off the tape;

If you use a wider 4.0 cm tape of this brand, you need The tape can only be torn off with a force greater than 5.0 N.

It can be inferred from the table that the force will increase by about 1.6-1.8 N for every 1 cm wide of the tape, so 5.0+1.8=6.8 N, the 7.0 N of the G option is the closest