(a) Explain the statement the acceleration of free... | WAEC SSCE - Physics - 2006 (Essay)

Question 1 Report

(a) Explain the statement the acceleration of free fall cohesion.

(b) State two factors that can affect the value of the narrow glass tube has a concave meniscus while acceleration of free fall at a place.

Answer

The OCR text of this question is partly garbled; the coherent physics content is about the acceleration of free fall, answered below.

(a) Meaning of "the acceleration of free fall at a place is \(9.8\ \text{m s}^{-2}\)"

It means that a body falling freely under gravity alone (with no air resistance) at that place has its velocity increasing at a constant rate of \(9.8\ \text{metres per second every second}\); that is, each second its downward speed increases by \(9.8\ \text{m s}^{-1}\).

(b) Two factors that affect the value of the acceleration of free fall at a place

The latitude (distance from the equator) - \(g\) is greater at the poles than at the equator because the Earth is not a perfect sphere and because of the Earth's rotation.
The altitude / height above sea level (distance from the Earth's centre) - \(g\) decreases as one goes higher above the Earth's surface.

Read lesson note on Equilibrium Of Forces (WAEC)

Read lesson note on Measurements And Units (JAMB)

Answer Details

The OCR text of this question is partly garbled; the coherent physics content is about the acceleration of free fall, answered below.

(a) Meaning of "the acceleration of free fall at a place is \(9.8\ \text{m s}^{-2}\)"

(b) Two factors that affect the value of the acceleration of free fall at a place

The latitude (distance from the equator) - \(g\) is greater at the poles than at the equator because the Earth is not a perfect sphere and because of the Earth's rotation.
The altitude / height above sea level (distance from the Earth's centre) - \(g\) decreases as one goes higher above the Earth's surface.

Read lesson note on Equilibrium Of Forces (WAEC)

Read lesson note on Measurements And Units (JAMB)

Equilibrium Of Forces

Measurements And Units

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(a) Explain the statement the acceleration of free fall cohesion. (b) State two factors that can affect the value of the narrow glass tube has a concave men...

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(a) Explain the statement the acceleration of free fall cohesion. (b) State two factors that can affect the value of the narrow glass tube has a concave men...

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