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Earth's Gravitational Field - Statistics
General Stats
- This quiz has been taken 6 times
- The average score is 6 of 21
Answer Stats
| Question | Answer | % Correct |
|---|---|---|
| Gravity is a force of __________ that exists between any two masses. | Attraction | 83%
|
| What is the three significant figure value for the constant G used in the above equations? (Scientific Notation is used) | 6.67x10-11 | 33%
|
| What does the field vector g also represent due to Newton's Second Law of Motion? | Acceleration | 33%
|
| Altitude | 33%
| |
| Electric | 33%
| |
| What does Newton's Second Law of Motion state (equation)? | F=ma | 33%
|
| What are the three classical vector force fields? | Gravitational | 33%
|
| What can be defined as the energy required to move a mass to a specific point within a gravitational field? | Gravitational Potential Energy | 33%
|
| Magnetic | 33%
| |
| Mass | 33%
| |
| What acceleration due to gravity measured in? | m/s^2 | 33%
|
| By assuming the object is being moved to a point in a gravitational field where the zero level is at infinite, what must the value of Ep always be? | Negative | 33%
|
| What equation calculates the Ep of any two objects (m1 is mass of object 1, m2 and object 2 also, r is the distance between them) | Ep=-Gm1m2/r | 17%
|
| This is calculated using what equation? (Let ^ be equal to Ep) | Ep=mgh | 17%
|
| What equation represents the Law of Universal Gravitation? (m1=larger object's mass, m2=smaller object's mass, r1=larger objects radius) | F=Gm1m2/r1^2 | 17%
|
| What is the equation for calculating gravity? | g=Gm/r^2 | 17%
|
| What are the three main factors that determine the value of g on Earth? (The first part has three subfactors in it, addressed below) | Location | 17%
|
| The flat poles are closer to centre so higher g | 17%
| |
| The spinning Earth creates centrifuge effect that reduces gravity near equator | 17%
| |
| What are the three factors that effect gravity that purely depend on the location on the Earth's surface? | The thickness of crust in that location | 17%
|
| What is the force of attraction between our mass and the Earth's (or some other heavenly body)? | Weight | 0%
|
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