Question

Multiple choice Questions

1) Which of the following is true?

a) The acceleration due to gravity acting on a freely falling body is

directly proportional to the mass of the body

b) Mass of the object is same on Moon and Earth

c) G value is always constant

d) The weight of an object at the center of earth will be zero

2) The value of acceleration due to gravity of earth

a)Same on equator and poles

b)Is the least at equator

c)Is the least on poles

d) Increase from pole to equator

3) An object is thrown vertically upwards and rises to a height of 10 m.

Calculate the velocity with which the object was thrown upwards? Take

g=9.8 m/s2

a) 14m/s

b) 16m/s

c) 10m/s

d) 9.8 m/s

4) The time taken by the object to reach the highest point in the above

question

a) 1.42s

b) 1.5 s

c) 1 s

d) 1.43 s

5) Which of the them is true for two bodies separated by some distance?

a) When the distance between them is halved, Gravitational force

becomes 4 times

b) When one of the mass becomes halved, Gravitational force becomes

halved
c) When the distance between them is increased four times, Gravitational

force becomes 1/16 times

d) None of the above​

Answer 1

Answer:

1. c)

2. b)

5. b)

I'm not sure about 3.&4.