Chapter # 5 Gravitation

Gravitation

Quiz

 

1. What is the value of the acceleration due to gravity on the surface of the Earth?
   1.   8.9 m/s²
   2.   9.8 m/s²
   3.   10.8 m/s²
   4.   11.8 m/s²
2. Which of the following planets has the greatest gravitational force?
   1.   Earth
   2.   Mars
   3.   Jupiter
   4.   Venus
3. The force of gravity between two objects depends on:
   1.   Their masses and the distance between them
   2.   Their volumes
   3.   Their densities
   4.   Their velocities
4. What is the gravitational force between two objects called?
   1.   Tension
   2.   Weight
   3.   Friction
   4.   Normal force
5. If the distance between two masses is doubled, the gravitational force between them will:
   1.   Double
   2.   Halve
   3.   Become one-fourth
   4.   Remain the same
6. The gravitational force on an object is also known as:
   1.   Mass
   2.   Weight
   3.   Density
   4.   Volume
7. What will be the weight of a 10 kg object on the surface of the Earth?
   1.   9.8 N
   2.   98 N
   3.   980 N
   4.   100 N
8. Who formulated the universal law of gravitation?
   1.   Albert Einstein
   2.   Galileo Galilei
   3.   Isaac Newton
   4.   Nikola Tesla
9. According to Newton's law of gravitation, the force of attraction between two bodies is directly proportional to:
   1.   The sum of their masses
   2.   The difference of their masses
   3.   The product of their masses
   4.   The square of the distance between them
10. Gravitational force is an example of which type of force?
    1.   Contact force
    2.   Non-contact force
    3.   Frictional force
    4.   Tension force