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Part A: Multiple Choice: Knowledge and Understanding Identify the letter of the choice that best completes the statement or answers the question. 1. A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [S] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a. 70.0 km/h, 70.0 km/h [37° S of E] b. 70.0 km/h, 50.0 km/h [37° S of E] c. 50.0 km/h, 50.0 km/h [37° S of E] 2. The acceleration due to gravity on Earth d. 50.0 km/h, 70.0 km/h [37° S of E] e. 50.0 km/h [37° S of E], 70.0 km/h a. is the same at all locations on the surface of Earth b. is greater for heavier objects c. is greater at the equator and less at the poles d. is the same at any two locations provided that the distance to the centre of Earth at those locations is the same e. varies slightly with latitude 3. A plane must fly to a destination that is south-west of its departure point. Because of the wind, it heads west. What direction is the wind blowing in? a. south b. west c. north-east d. north-west e. east 4. For an object travelling with "uniform circular motion," its acceleration is a. zero because the speed is constant b. directed tangent to the circle c. directed toward the centre of the circle d. changing in magnitude depending on its position in the circle e. directed outward from the centre of the circle 5. The orbital radius of a satellite circling the Earth a. depends only on its orbital speed b. depends only on its mass c. depends on both its orbital speed and its mass d. is the same for all satellites e. is directly proportional to its orbital speed 6. Astronauts on board an orbiting space station appear to be "floating" because a. they are in the vacuum of space b. they are outside Earth's gravitational influence c. the force of gravity acting on them has been reduced to an insignificant level d. they have become truly "weightless" e. they are in free fall along with the space station itself 2 of 13

Part A: Multiple Choice: Knowledge and Understanding Identify the letter of the choice that best completes the statement or answers the question. 1. A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [S] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a. 70.0 km/h, 70.0 km/h [37° S of E] b. 70.0 km/h, 50.0 km/h [37° S of E] c. 50.0 km/h, 50.0 km/h [37° S of E] 2. The acceleration due to gravity on Earth d. 50.0 km/h, 70.0 km/h [37° S of E] e. 50.0 km/h [37° S of E], 70.0 km/h a. is the same at all locations on the surface of Earth b. is greater for heavier objects c. is greater at the equator and less at the poles d. is the same at any two locations provided that the distance to the centre of Earth at those locations is the same e. varies slightly with latitude 3. A plane must fly to a destination that is south-west of its departure point. Because of the wind, it heads west. What direction is the wind blowing in? a. south b. west c. north-east d. north-west e. east 4. For an object travelling with "uniform circular motion," its acceleration is a. zero because the speed is constant b. directed tangent to the circle c. directed toward the centre of the circle d. changing in magnitude depending on its position in the circle e. directed outward from the centre of the circle 5. The orbital radius of a satellite circling the Earth a. depends only on its orbital speed b. depends only on its mass c. depends on both its orbital speed and its mass d. is the same for all satellites e. is directly proportional to its orbital speed 6. Astronauts on board an orbiting space station appear to be "floating" because a. they are in the vacuum of space b. they are outside Earth's gravitational influence c. the force of gravity acting on them has been reduced to an insignificant level d. they have become truly "weightless" e. they are in free fall along with the space station itself 2 of 13

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Part A: Multiple Choice: Knowledge and Understanding Identify the letter of the choice that best completes the statement or answers the question. 1. A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [S] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a. 70.0 km/h, 70.0 km/h [37° S of E] b. 70.0 km/h, 50.0 km/h [37° S of E] c. 50.0 km/h, 50.0 km/h [37° S of E] 2. The acceleration due to gravity on Earth d. 50.0 km/h, 70.0 km/h [37° S of E] e. 50.0 km/h [37° S of E], 70.0 km/h a. is the same at all locations on the surface of Earth b. is greater for heavier objects c. is greater at the equator and less at the poles d. is the same at any two locations provided that the distance to the centre of Earth at those locations is the same e. varies slightly with latitude 3. A plane must fly to a destination that is south-west of its departure point. Because of the wind, it heads west. What direction is the wind blowing in? a. south b. west c. north-east d. north-west e. east 4. For an object travelling with "uniform circular motion," its acceleration is a. zero because the speed is constant b. directed tangent to the circle c. directed toward the centre of the circle d. changing in magnitude depending on its position in the circle e. directed outward from the centre of the circle 5. The orbital radius of a satellite circling the Earth a. depends only on its orbital speed b. depends only on its mass c. depends on both its orbital speed and its mass d. is the same for all satellites e. is directly proportional to its orbital speed 6. Astronauts on board an orbiting space station appear to be "floating" because a. they are in the vacuum of space b. they are outside Earth's gravitational influence c. the force of gravity acting on them has been reduced to an insignificant level d. they have become truly "weightless" e. they are in free fall along with the space station itself 2 of 13
Transcribed Image Text:Part A: Multiple Choice: Knowledge and Understanding Identify the letter of the choice that best completes the statement or answers the question. 1. A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [S] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a. 70.0 km/h, 70.0 km/h [37° S of E] b. 70.0 km/h, 50.0 km/h [37° S of E] c. 50.0 km/h, 50.0 km/h [37° S of E] 2. The acceleration due to gravity on Earth d. 50.0 km/h, 70.0 km/h [37° S of E] e. 50.0 km/h [37° S of E], 70.0 km/h a. is the same at all locations on the surface of Earth b. is greater for heavier objects c. is greater at the equator and less at the poles d. is the same at any two locations provided that the distance to the centre of Earth at those locations is the same e. varies slightly with latitude 3. A plane must fly to a destination that is south-west of its departure point. Because of the wind, it heads west. What direction is the wind blowing in? a. south b. west c. north-east d. north-west e. east 4. For an object travelling with "uniform circular motion," its acceleration is a. zero because the speed is constant b. directed tangent to the circle c. directed toward the centre of the circle d. changing in magnitude depending on its position in the circle e. directed outward from the centre of the circle 5. The orbital radius of a satellite circling the Earth a. depends only on its orbital speed b. depends only on its mass c. depends on both its orbital speed and its mass d. is the same for all satellites e. is directly proportional to its orbital speed 6. Astronauts on board an orbiting space station appear to be "floating" because a. they are in the vacuum of space b. they are outside Earth's gravitational influence c. the force of gravity acting on them has been reduced to an insignificant level d. they have become truly "weightless" e. they are in free fall along with the space station itself 2 of 13
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