If 20 kg of mass is lifted from earth to moon, what is its mass on moon?
a)20 kg
b) 2 kg
c) 4 kg
d) 3.2 kg
If the value of g on a planet is 25 N/kg then what is weight of 2 kg body on it?
a) 25 N
b) 50 N
c) 75 N
d) 150 N
Explanation:m= 2 kg g = 25 N/kg
W (planet)= mg
W (planet) = 2 kg x 25 N/k W (planet)=50 N
If
it is spring in southern hemisphere of earth then which weather is in northern
hemisphere?
a) summer
b)
winter
c) autumn
Which of the following is involved in producing tides in ocean?
a) gravitation pull of moon on earth
b) gravitational pull of sun on earth
c) rotation of the earth
d) all of these
