Gravitational field strength unit

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SUMMARY

The gravitational field strength is quantified as 9.8 N/kg, which is numerically equivalent to the acceleration due to gravity, also expressed as 9.8 m/s². While both quantities share the same numerical value, they represent different physical concepts: gravitational field strength indicates the force per unit mass acting on an object, whereas acceleration describes the rate of change of velocity. It is essential to maintain the unit of N/kg for gravitational field strength to accurately reflect its definition.

PREREQUISITES
  • Understanding of Newton's second law of motion
  • Familiarity with the concept of force and mass
  • Knowledge of unit conversions between force and acceleration
  • Basic grasp of gravitational concepts in physics
NEXT STEPS
  • Study the relationship between force, mass, and acceleration using Newton's laws
  • Explore unit conversions between different physical quantities, particularly in mechanics
  • Investigate the implications of gravitational field strength in various contexts, such as planetary science
  • Learn about the differences between scalar and vector quantities in physics
USEFUL FOR

Students of physics, educators teaching gravitational concepts, and anyone interested in understanding the nuances of gravitational field strength and acceleration.

xdeanna
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What quantity has the same numerical value as the gravitational field strength, but is expressed in a different unit?

g= 9.8 N/kg

i can't think of anything else that's 9.8 besides g
 
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Isn't g also an acceleration?
 
rightt :D thanks
 
Yes g is also an acceleration but that would be the same units. g=9.8N/kg

N/kg=(kgm/s^2)/kg= m/s^2 which is the same units as acceleration.

I don't really get what purpose this question might be trying to fulfill...
 
i thought the same thing too but the acceleration was right..the teacher told me for gravitational field strength you leave the units as N/kg
 
The gravitational field strength and acceleration represent different quantities: the first is how many Newtons gravity applies on an object, the second is how fast the object gains speed. The numerical value for both is the same, and that's no coincidence, but that doesn't mean there's no conceptual difference between the 2 values.
 

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