WorksheetsGravity
Total questions: 10
Worksheet time: 5mins
Normally the datum used for gravity surveys is sea level and gravity decrease (a) mGal for every meter above sea level
In which of these can you find acceleration?
Running
Throwing a ball
Cycleing
Driving
The force of attraction between two unit point masses separated by a unit distance is called
universal gravitational constant
gravitational field
acceleration due to gravity
gravitational potential
The atmosphere is held to the earth by
earth’s magnetic field
clouds
gravity
wind
The weight of an object at the centre of the earth of radius R is
R times the weight at the surface of the earth
R21 times the weight at surface of the earth
infinite
zero
The value of acceleration due to gravity
is same on equator and poles
is least on poles
is least on equator
increases from pole to equator
A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force
does positive work on the planet.
does negative work on the planet.
does positive work on the planet during part of the motion and negative work during the other part.
does zero work on the planet at all points between aphelion and perihelion.
Which of the following includes in spatial variations in gravity corrections?
i. Bouguer correction
ii. Terrain correction
iii. Free-air correction
iv. Tidal correction
i, ii and iii
ii, iii and iv
i, iii and iv
i, ii, iii and iv
Which of the following statements bout gravitational force is NOT correct?
It is experienced by all bodies in the universe.
It is a dominant force between celestial bodies
It is a negligible force for atoms.
It is the same for all pairs of bodies in our universe.
Which one of the materials has the highest density value?
Quartzite
Shale
Basalt
Pyrite
