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Solids, liquids and gases

Solids, liquids and gases

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Question 2

A robotics engineer wants to estimate the pressure a heavy exploration rover exerts on a sandy testbed when parked stationary on one of its landing pads. She records the following measurements for a single landing pad:

MeasurementValue
Force (weight) supported by the pad720 ............
Area of the pad in contact with the sand180 cm2180 \text{ cm}^2180 cm2
a.

Complete the table by writing the correct unit for weight on the dotted line.

[1]
b.

State the name of a piece of equipment that the engineer could use to measure this force directly.

[1]
c.

Suggest a method the engineer could use to find the contact area of the textured landing pad.

[2]
d.

State the formula linking pressure, force, and area.

[1]
e.

Calculate the pressure, in N/cm2\text{N/cm}^2N/cm2, that the landing pad exerts on the sand.

[2]
Markscheme

Solids, liquids and gases Questions

  1. IGCSE
  2. /Physics
  3. /Solids, liquids and gases

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