Chapter 13 - Chapter 13: GRAVITATION 1. In the formula F =...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 13: GRAVITATION 1. In the formula F = Gm 1 m 2 /r 2 , the quantity G : A. depends on the local value of g B. is used only when Earth is one of the two masses C. is greatest at the surface of Earth D. is a universal constant of nature E. is related to the Sun in the same way that g is related to Earth ans: D 2. The magnitude of the acceleration of a planet in orbit around the Sun is proportional to: A. the mass of the planet B. the mass of the Sun C. the distance between the planet and the Sun D. the reciprocal of the distance between the planet and the Sun E. the product of the mass of the planet and the mass of the Sun ans: B 3. Suitable units for the gravitational constant G are: A. kg · m/s 2 B. m/s 2 C. N · s/m D. kg · m/s E. m 3 /(kg · s 2 ) ans: E 4. The gravitational constant G has the derived units: A. N · m B. N · m/kg C. N · kg/m D. N · m 2 /kg 2 E. N · kg 2 /m 2 ans: D 5. Earth exerts a gravitational force on the Moon, keeping it in its orbit. The reaction to this force, in the sense of Newton’s third law, is: A. the centripetal force on the Moon B. the nearly circular orbit of the Moon C. the gravitational force on Earth by the Moon D. the tides due to the Moon E. the apple hitting Newton on the head. ans: C Chapter 13: GRAVITATION 193
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6. A particle might be placed 1. inside a uniform spherical shell of mass M , but not at the center 2. inside a uniform spherical shell of mass M , at the center 3. outside a uniform spherical shell of mass M , a distance r from the center 4. outside a uniform solid sphere of mass M , a distance 2 r from the center Rank these situations according to the magnitude of the gravitational force on the particle, least to greatest. A. All tie B. 1, 2, 3, 4 C. 1 and 2 tie, then 3 and 4 tie D. 1 and 2 tie, then 3, then 4 E. 1 and 2 tie, then 4, then 3 ans: D 7. Three particles, two with mass m and one with mass M , might be arranged in any of the four con f gurations known below. Rank the con f gurations according to the magnitude of the gravitational force on M , least to greatest. M m m dd 1 m M m 2 M m m d d 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M m m d d 4 A. 1, 2, 3, 4 B. 2, 1, 3, 4 C. 2, 1, 4, 3 D. 2, 3, 4, 2 E. 2, 3, 2, 4 ans: B 8. Four particles, each with mass m are arranged symmetrically about the origin on the x axis. A f fth particle, with mass M , is on the y axis. The direction of the gravitational force on M is: x y m m m m M A. B. C. D. E. none of these directions ans: B 194 Chapter 13: GRAVITATION
Background image of page 2
9. Let F 1 be the magnitude of the gravitational force exerted on the Sun by Earth and F 2 be the magnitude of the force exerted on Earth by the Sun. Then: A. F 1 is much greater than F 2 B. F 1 is slightly greater than F 2 C. F 1 is equal to F 2 D. F 1 is slightly less than F 2 E. F 1 is much less than F 2 ans: C 10. Let M denote the mass of Earth and let R denote its radius. The ratio g/G at Earth’s surface is: A. R 2 /M B.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

Chapter 13 - Chapter 13: GRAVITATION 1. In the formula F =...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online