Statistics for Earth's Gravitational Field

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General Stats

This quiz has been taken 5 times
The average score is 5 of 21

Answer Stats

Question	Answer	% Correct
Gravity is a force of __________ that exists between any two masses.	Attraction	80%
What acceleration due to gravity measured in?	m/s^2	40%
What is the three significant figure value for the constant G used in the above equations? (Scientific Notation is used)	6.67x10-11	20%
What does the field vector g also represent due to Newton's Second Law of Motion?	Acceleration	20%
	Altitude	20%
	Electric	20%
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	20%
This is calculated using what equation? (Let ^ be equal to Ep)	Ep=mgh	20%
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	20%
What does Newton's Second Law of Motion state (equation)?	F=ma	20%
What is the equation for calculating gravity?	g=Gm/r^2	20%
What are the three classical vector force fields?	Gravitational	20%
What can be defined as the energy required to move a mass to a specific point within a gravitational field?	Gravitational Potential Energy	20%
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	20%
	Magnetic	20%
	Mass	20%
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	20%
	The flat poles are closer to centre so higher g	20%
	The spinning Earth creates centrifuge effect that reduces gravity near equator	20%
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	20%
What is the force of attraction between our mass and the Earth's (or some other heavenly body)?	Weight	0%