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Wednesday 22th May 2024 WAEC
PHYSICS
(Objective & Essay)9:30am – 12:00pm
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PHYSICS - Obj: examrunz.com.ng
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PHYSICS - Essay: examrunz.com.ng
1a. Surface tension is Force per unit length
The Dimension of Force is [MLT^-2]
The dimension of Length is [L]
The dimension of surface tension is [MT^-2]
1b.
Instrument to Measure the Force of Gravity:
The instrument used to measure the force of gravity at a place is called a new gravimeter
(2a)
(i)Monitoring and studying Earth's weather and climate by capturing continuous images and data of Earth's surface and atmosphere.
(ii)Facilitating global communications, especially in high-latitude regions that are difficult to reach with geostationary satellites.
(2b)
The slope of a graph of tensile stress against tensile strain represents the Young's modulus of the material. This modulus is a measure of the stiffness of the material and is defined as the ratio of tensile stress to tensile strain in the linear portion of the stress-strain curve.
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(9)
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