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Questions and Answers
How can the value of gravitational acceleration be calculated at a certain height?
How can the value of gravitational acceleration be calculated at a certain height?
- Using the equation for gravitational force at sea level
- By applying the law of universal gravitation directly
- Through measuring the gravitational pull of a pendulum
- By using the equation specifically for calculating gravity at height (correct)
What effect does depth have on gravitational acceleration?
What effect does depth have on gravitational acceleration?
- Gravitational acceleration increases significantly with depth
- Gravitational acceleration varies directly with the angle from the center
- Gravitational acceleration remains constant regardless of depth
- Gravitational acceleration decreases as depth increases (correct)
Which term refers to the angle or radius at a certain depth in relation to gravitational variation?
Which term refers to the angle or radius at a certain depth in relation to gravitational variation?
- Gamma
- Phi (correct)
- Beta
- Theta
What is represented by the circle in the diagram regarding gravitational variation?
What is represented by the circle in the diagram regarding gravitational variation?
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Where is the center noted in the gravitational variation diagram?
Where is the center noted in the gravitational variation diagram?
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Study Notes
Gravitational Variation with Height
- Gravitational acceleration (g) can be calculated at a height (h) using a specific equation (equation 4, not shown here).
Gravitational Variation with Depth
- Gravity's relationship with depth is depicted in a diagram (not shown here) showing Earth as a circle with center O and radius R.
- The diagram illustrates the gravitational acceleration (g) at a point at a depth (R-d) from the center where d is the depth from the surface.
- The angle or radius at a specific depth is represented by Φ.
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