What is the value of Earth’s pull of gravity commonly accepted as?

Prepare for the NCEA Level 2 Physics Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The commonly accepted value for Earth’s gravitational acceleration is 9.8 m/s². This value represents the acceleration of an object due to Earth's gravity when it is in free fall near the surface, neglecting air resistance.

When an object is dropped, it accelerates towards the Earth at this rate. The unit m/s² (meters per second squared) indicates that for every second the object falls, its velocity increases by 9.8 meters per second. This concept is fundamental in physics, particularly in the study of motion and forces.

While 9.8 N/kg might seem related, it refers to the specific measure of gravitational field strength, where 1 N/kg is equal to an acceleration of 1 m/s². The values denoted in kilometers per hour squared and meters squared per second are not appropriate units for measuring acceleration due to gravity and do not reflect the context of gravitational pull.

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