Which unit does g carry?
A mission planner can quote the field strength at a launch pad in Florida, at a rooftop in Chicago, or at a runway in Texas, all without looking anything up.
Near Earth's surface, one value of g serves everywhere.
Near the surface, Earth's field exerts a force of about 9.8 newtons on each kilogram. On a 1 kg carton of milk, the field exerts 9.8 N.
Near Earth's surface, the field pulls each kilogram with about…
'About' matters: the true value drifts slightly from place to place, and 9.8 N/kg is the rounded, typical figure.
'Near the surface' matters too: 9.8 N/kg is Earth's surface value, not a universal number. Elsewhere, on the Moon and at other planets, g takes other values.
Near Earth's surface, on what does the field exert that 9.8 N?
A climber checks the field strength at the top of a tall peak, still near Earth's surface. Roughly what is g there?
Write down the fact:
Near Earth's surface, g is about 9.8 N/kg.
The top of the peak is still near Earth's surface.
g there is about 9.8 N/kg, the near-surface value.
A student says 9.8 N/kg is a rounded, typical value that drifts slightly from place to place. Is the student correct?
A field meter reads 9.8 N/kg. Where is the field meter most likely sitting?
Which statement about Earth's gravitational field strength is correct?
Near Earth's surface, how does the field's pull on 1 kg of feathers compare with its pull on 1 kg of lead?