(This is specially for the class 10 students.)
#20 mcq from topic gravitational force solve and comment your answer
1. What is the formula for calculating gravitational force between two objects?
a. F = ma
b. F = G (m1 * m2) / r^2
c. F = 2Gm1
d. F = mb
2. Which of the following factors does NOT affect the gravitational force between two objects?
a. Mass of the objects
b. Distance between the objects
c. Speed of the objects
d. Gravitational constant
3. On which planet is the acceleration due to gravity the strongest?
a. Venus
b. Mars
c. Earth
d. Jupiter
4. Acceleration due to gravity is also known as:
a. G-force
b. Weight
c. Free fall
d. Galileo's speed
5. If the distance between two objects is doubled, how does the gravitational force between them change?
a. It quadruples
b. It doubles
c. It halves
d. It remains the same
6. Which scientist is credited with discovering the laws of gravity?
a. Isaac Newton
b. Albert Einstein
c. Galileo Galilei
d. Nikola Tesla
7. What happens to the acceleration due to gravity as you move further away from Earth's surface?
a. It decreases
b. It increases
c. It remains the same
d. It fluctuates
8. What unit is used to measure gravitational force?
a. Watts
b. Newtons
c. Ohms
d. Joules
9. The acceleration due to gravity on Earth is approximately:
a. 6.8 m/s^2
b. 9.8 m/s^2
c. 12.8 m/s^2
d. 15.8 m/s^2
10. Which of the following is NOT a factor affecting the acceleration due to gravity?
a. Mass of the object
b. Distance from the center of the Earth
c. Earth's rotation
d. Altitude
11. What is the SI unit for the gravitational constant?
a. N/m^2
b. Nm/kg^2
c. Kgm/s^2 d. Nm^2/kg^2
12. What happens to the gravitational force between two objects if their masses double?
a. It quadruples
b. It halves
c. It doubles
d. It remains the same
13. At what point is the acceleration due to gravity zero?
a. At the center of the Earth
b. On the Equator
c. At the North Pole
d. At the South Pole
14. Which celestial body has the highest acceleration due to gravity in our solar system?
a. Earth
b. Venus
c. Jupiter
d. Mercury
15. What does the gravitational constant represent in the formula for gravitational force?
a. Mass of the first object
b. Mass of the second object
c. Distance between the objects
d. Proportionality constant
16. What is the value of the gravitational constant (G) approximately?
a. 6.67 x 10^-11 Nm^2/kg^2
b. 9.81 m/s^2
c. 3.14
d. 2.72
17. How does the acceleration due to gravity at the poles compare to the equator?
a. It is higher at the poles
b. It is higher at the equator
c. It is the same at both locations
d. It varies unpredictably
18. Objects are weightless in space because:
a. The force of gravity is zero
b. The force of gravity on the object is still the same
c. The acceleration due to gravity is zero
d. The gravitational constant is lower in space
19. If the mass of an object increases but its distance from another object remains the same, what happens to the gravitational force between them?
a. It increases
b. It decreases
c. It remains the same
d. It becomes repulsive
20. What is the direction of the gravitational force between two objects?
a. It is always attractive
b. It is always repulsive
c. It depends on the masses of the objects
d. It depends on the distance between the objects
Answer Key (Always review AI generated answers for accuracy - Math is more likely to be inaccurate)
b. F = G (m1 * m2) / r^2
d. Gravitational constant
d. Jupiter
b. Weight
c. It halves
a. Isaac Newton
a. It decreases
b. Newtons
b. 9.8 m/s^2
c. Earth's rotation
b. Nm/kg^2
c. It doubles
a. At the center of the Earth
c. Jupiter
d. Proportionality constant
a. 6.67 x 10^-11 Nm^2/kg^2
a. It is higher at the poles
a. The force of gravity is zero
a. It increases
a. It is always attractive
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