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The physics of everyday phenomena a conceptual introduction to physics 7th edition griffith test bank

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The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip.. The average speed for the entire trip is... If you come to rest in 7.5 s while traveli

Trang 1

Chapter 002 Describing Motion

Multiple Choice Questions

meters The final speed of the auto is 60 meters/sec How long does it take the car to cover the

Trang 2

5 The following quantities relate to the rate of change of position Which pair will always have the same magnitude?

0.5 m in a time of 2.0 s The average speed of the ball is

0.5 m in a time of 2.0 s The acceleration of the ball is

km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip The average speed for the entire trip is

Trang 3

10 Initially you are driving at 55 mi/hr If you come to rest in 7.5 s while traveling 450 ft, your average speed is

speedometer reading is 55 mi/hr Your speedometer reading is

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16 If the braking distance for your car at a certain speed is 200 ft and, after reacting to a situation, you have managed to stop your car in 4.0 s, then the magnitude of the acceleration was

curve on the graph may be identified as

any point may be identified with

of the average velocity of the car

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21 A car starts from rest and reaches 20 m/s in 10 seconds The average acceleration of the car in m/s2 is

motion One can get the

coasts up the hill, coming to rest in 4 seconds The average acceleration of the car while on the hill is

Trang 6

26 Two displacement vectors are added: one of length 2.0 m and one of length 3.0 m Not knowing the respective directions, we can say that the length of the sum of the vectors will be

speed of the body at time 25 seconds later?

car to come to a complete stop?

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31 For the first hour a car is driven at a constant speed of 80 km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for another hour The average speed for the entire trip

Trang 8

35 The displacement of an object is shown in the graph above The graph shows

Trang 9

39 Refer to the graph above The velocity of this object at the start of the motion is

Trang 10

42 Refer to diagram of billiard balls F, K, M, and T If billiard ball M is traveling straight upward at 2.5 m/sec, then

through the turn The radius of this turn is 1000 feet Which statement is true?

Refer to the diagram of Racetrack X

counterclockwise and at constant speed, then the maximum acceleration will take place where the turning radius is

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46 Refer to the diagram of Racetrack X It is for a racer to have uniform acceleration on this track

Fill in the Blank Questions

the same amount each second

accelerate at the same rate it will take another seconds to reach 45 m/s

6.0 seconds it has traveled _ m

hand makes a complete revolution Its average velocity over that time is _ cm/s

the _ from the slope of the curve

Trang 12

Chapter 002 Describing Motion Key

Multiple Choice Questions

meters The final speed of the auto is 60 meters/sec How long does it take the car to cover the 1200 meters?

Trang 13

5 The following quantities relate to the rate of change of position Which pair will always have

the same magnitude?

of 0.5 m in a time of 2.0 s The average speed of the ball is

of 0.5 m in a time of 2.0 s The acceleration of the ball is

km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip The average speed for the entire trip is

Trang 14

10 Initially you are driving at 55 mi/hr If you come to rest in 7.5 s while traveling 450 ft, your

speedometer reading is 55 mi/hr Your speedometer reading is

Trang 15

16 If the braking distance for your car at a certain speed is 200 ft and, after reacting to a situation,

you have managed to stop your car in 4.0 s, then the magnitude of the acceleration was

B 25 ft/s2

C.32 ft/s2

D.50 ft/s2

curve on the graph may be identified as

at any point may be identified with

magnitude of the average velocity of the car

Trang 16

21 A car starts from rest and reaches 20 m/s in 10 seconds The average acceleration of the car

motion One can get the

coasts up the hill, coming to rest in 4 seconds The average acceleration of the car while on the hill is

Trang 17

26 Two displacement vectors are added: one of length 2.0 m and one of length 3.0 m Not

knowing the respective directions, we can say that the length of the sum of the vectors will be

may be identified with

the speed of the body at time 25 seconds later?

the car to come to a complete stop?

Trang 18

31 For the first hour a car is driven at a constant speed of 80 km/hr The motor begins to vibrate

and the driver reduces the speed to 40 km/hr for another hour The average speed for the entire trip is

Trang 19

35 The displacement of an object is shown in the graph above The graph shows

Trang 20

39 Refer to the graph above The velocity of this object at the start of the motion is

Trang 21

42 Refer to diagram of billiard balls F, K, M, and T If billiard ball M is traveling straight upward at

2.5 m/sec, then

through the turn The radius of this turn is 1000 feet Which statement is true?

Refer to the diagram of Racetrack X

track counterclockwise and at constant speed, then the maximum acceleration will take place where the turning radius is

Trang 22

46 Refer to the diagram of Racetrack X It is for a racer to have uniform acceleration

on this track

Fill in the Blank Questions

the same amount each second

increase

accelerate at the same rate it will take another seconds to reach 45 m/s

5

the 6.0 seconds it has traveled _ m

72

the hand makes a complete revolution Its average velocity over that time is _ cm/s

get the _ from the slope of the curve

instantaneous acceleration

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