Q 1: Calculate the pressure. Linda is pulling her sled carrying a present with a force of 900 N acting towards the ground. The sled has a total area of 3 cm2. Find the pressure under the sled by applying the formula.

Q2: A force of 50 N exerts a pressure of 5Pa. What is the area over which the force is acting?

Q3: A surfer applies a force of 645 N on water. The area of his surfboard is 1.5 m2. Calculate the pressure applied.

Q 4: Complete the table below.

Pressure ( N/m2) // Force applied ( N) // Area ( m2)

(fill in blank space) // 10 N // 6 m2

1000 Pa // 400 N // (fil in blank space)

800 N/m2 // (fill in blank space) // 40 m2

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.