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2024 WAEC Physics Theory (a) State two uses of a polar satellite. (b) What does the slope of a...

Physics
WAEC 2024

(a) State two uses of a polar satellite.

(b) What does the slope of a graph of tensile stress against tensile strain represent?

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Explanation

(a) The uses of polar satellites include:

(i) for location identification

(ii) to collect data on climate change

(iii) observe and predict a natural disaster

(iv) use for communication.

(b) The slope of a graph of tensile stress against tensile strain represents the modulus of elasticity, also known as Young's modulus. Young's modulus quantifies the stiffness of a material. A steeper slope indicates a stiffer material, while a flatter slope indicates a more flexible material.


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