Which of the following statements is true about escape velocity...? Mcqs

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Which of the following statements is true about escape velocity...?

(A) Escape velocity is independent of the mass of the planet
(B) Escape velocity is independent of the mass of the escaping object

(C) Escape velocity decreases with an increase in the radius of the planet
(D) Escape velocity depends on the shape of the planet

✅ Correct Answer: Escape velocity is independent of the mass of the escaping object

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Source: This question is taken from the Everyday Science

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Rain drops fall from great height Which among the following statements is true regarding it...?

(A) they fall with that ultimate velocity, which are different for different droplets
(B) they fall with same ultimate velocity

(C) their velocity increases and they fall with different velocity on the earth
(D) their velocity increases and they fall with same velocity on the earth

✅ Correct Answer: they fall with that ultimate velocity, which are different for different droplets

Comments

Source: This question is taken from the Everyday Science

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On the Moon, the escape velocity is: __________...?

(A) Less than on Earth due to its lower mass and smaller radius
(B) More than on Earth due to its smaller radius

(C) The same as on Earth because escape velocity is a constant
(D) Dependent on the time of day

✅ Correct Answer: Less than on Earth due to its lower mass and smaller radius

Comments

Source: This question is taken from the Everyday Science

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What would happen to the escape velocity if the mass of the Earth were doubled, keeping the radius the same...?

(A) It would remain the same
(B) It would increase by a factor of 2sqrt{2}2​

(C) It would double
(D) It would decrease by a factor of 2sqrt{2}2

✅ Correct Answer: It would decrease by a factor of 2sqrt{2}2

Comments

Source: This question is taken from the Everyday Science

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If a rocket is launched with a velocity less than the escape velocity of Earth, it will:...?

(A) Escape the Earth’s gravitational field
(B) Enter into an elliptical orbit around the Earth

(C) Fall back to Earth
(D) Travel to another planet

✅ Correct Answer: Fall back to Earth

Comments

Source: This question is taken from the Everyday Science

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What is the escape velocity on Earth...?

(A) 7.9 km/s
(B) 9.8 km/s

(C) 11.2 km/s
(D) 12.4 km/s

✅ Correct Answer: 11.2 km/s

Comments

Source: This question is taken from the Everyday Science

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