Pressure in fluids and upthrust

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Question 12
Easy

A student carries out an investigation to measure how the pressure in a column of vegetable oil varies with depth.

Figure 1 shows the experimental apparatus used.

Figure 1: Diagram showing a pressure sensor attached to a vertical ruler. The sensor and ruler are immersed inside a tall glass cylinder filled with vegetable oil. A wire connects the pressure sensor to a digital data logger display.

The depth of the pressure sensor below the surface of the oil is measured using the scale on the ruler.

The pressure registered by the sensor is displayed on the screen of the data logger.

The student's results are shown in Table 1.

Table 1

Depth (ddd) in mPressure (ppp) in kPa
0.00101.0
0.10101.9
0.20102.8
0.30103.7
0.40104.6
0.50105.5

Figure 2 shows a graph with some of these results plotted, but two data points are missing.

Figure 2: A graph grid with 'Pressure in kPa' on the vertical y-axis ranging from 100.0 to 106.0, and 'Depth in m' on the horizontal x-axis ranging from 0.00 to 0.60. Four points are already plotted as 'x' marks at: (0.00, 101.0), (0.10, 101.9), (0.30, 103.7), and (0.40, 104.6). The points at 0.20 m and 0.50 m are missing.

Plot the two missing points on the graph.

[2]

Pressure in fluids and upthrust Questions

  1. GCSE
  2. /Physics
  3. /Pressure in fluids and upthrust