Free Printable 11th- Aromatic-Relative Motion

1.

The president’s airplane, Air Force One, flies at 250 m/s to the east with respect to the air. The air is moving at 35 m/s to the north with respect to the ground. Find the velocity of Air Force One with respect to the ground.

a)

252 m/s

b)

222 m/s

c)

435 m/s

d)

125 m/s

2.

A motorboat, which has a speed of 5 m/s in still water, is crossing a river (from west to east) The river's current is flowing south at 3.3 m/s. What is the magnitude of the boat’s resultant velocity with respect to the starting point?

a)

3.3 m/s

b)

5.0 m/s

c)

6.0 m/s

d)

8.3 m/s

3.

A hiker walks 5 kilometers due north and then 7 kilometers due east. What is the hiker's resultant displacement?

a)

2 km

b)

8.6 km

c)

12 km

d)

12.6 km

4.

Which statement describes a vector?

a)

It has magnitude but no direction

b)

It has direction but no magnitude

c)

It has both direction and magnitude

d)

It has constant magnitude but no
direction

5.

Observers using different ___________________ may measure different velocities for an object in motion

a)

frame of reference

b)

relatives of motion

c)

projectile motions

d)

constant velocity

6.

If a car passes you in the left lane going 90 km/hr north while you are driving 80 km/hr north, how fast is the car moving relative to your car?

a)

170 km/hr

b)

90 km/hr

c)

80 km/hr

d)

10 km/hr

7.

A boat heading north crosses a wide river with a velocity of 10.00 km/h relative to the water. The river has a uniform velocity of 5.00 km/h due east. Determine the boat’s speed with respect to an observer on shore.

a)

11.18 km/hr

b)

15 km/hr

c)

5 km/hr

d)

30 km/hr

8.

A passenger at the rear of a train traveling at 15 m/s relative to the ground throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to the ground as it leaves the thrower’s hand? In other words: how fast does a person on the ground see the ball move?

a)

30 m/s

b)

15 m/s

c)

0 m/s

d)

20 m/s

9.

A woman on a bicycle travels at 9 m/s relative to the ground as she passes a little boy on a tricycle going in the opposite direction. If the boy is traveling at 1 m/s relative to the ground, how fast does the boy appear to be moving relative to the woman?

a)

9 m/s

b)

8 m/s

c)

0 m/s

d)

10 m/s

10.

What is the train's speed with respect to the stationary observer?

a)

40 mph

b)

50 mph

c)

10 mph

d)

30 mph

11.

What is the walker's speed from the observer's perspective?

a)

10 mph

b)

40 mph

c)

50 mph

d)

30 mph

12.

What is the walker's speed with respect to the train?

a)

30 mph

b)

10 mph

c)

40 mph

d)

50 mph

13.

A train is travelling 50 m/s north on a track. A passenger on the train walks to the bathroom 1 m/s to the north. What is the speed of the passenger relative to the train?

a)

1 m/s

b)

51 m/s

c)

49 m/s

d)

50 m/s

14.

The Cheerios Nascar is racing around the track at 220 m/s, the Coke A Cola Nascar is speeding at 320 m/s. What is the magnitude of velocity of the Coke A Cola Nascar relative to the Cheerios Nascar?

a)

100 m/s

b)

320 m/s

c)

540 m/s

d)

0 m/s

15.

A dog and a cat are at a stand-off, running towards each other, both at 12 m/s. What is the magnitude of velocity of the cat relative to the dog?

a)

12 m/s

b)

24 m/s

c)

0 m/s

d)

6 m/s

16.

Observers using different ___________________ may measure different velocities for an object in motion

a)

frame of reference

b)

relatives of motion

c)

projectile motions

d)

constant velocity

17.

If a car passes you in the left lane going 90 km/hr north while you are driving 80 km/hr north, how fast is the car moving relative to your car?

a)

170 km/hr

b)

90 km/hr

c)

80 km/hr

d)

10 km/hr

18.

A woman on a bicycle travels at 9 m/s relative to the ground as she passes a little boy on a tricycle going in the opposite direction. If the boy is traveling at 1 m/s relative to the ground, how fast does the boy appear to be moving relative to the woman?

a)

9 m/s

b)

8 m/s

c)

0 m/s

d)

10 m/s

19.

A passenger at the rear of a train traveling at 15 m/s relative to the ground throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to the ground as it leaves the thrower’s hand? In other words: how fast does a person on the ground see the ball move?

a)

30 m/s

b)

15 m/s

c)

0 m/s

d)

20 m/s

20.

A boat heading north crosses a wide river with a velocity of 10.00 km/h relative to the water. The river has a uniform velocity of 5.00 km/h due east. Determine the boat’s speed with respect to an observer on shore. (Hint: draw vector arrows - you should get a right triangle)

a)

11.18 km/hr

b)

15 km/hr

c)

5 km/hr

d)

30 km/hr

21.

The diagrams show two cars travelling along a road in the same direction. The cars are travelling at a different but constant speeds. Picture 2 is taken 10 seconds after Picture 1. How far has car A travelled between Picture 1 and Picture 2?

a)

10m

b)

40m

c)

70m

d)

80m

22.

During which interval is the object not moving?

a)

B to C

b)

C to D

c)

D to E

d)

only at point A

23.

The more mass an object has, the faster it will fall.

a)

True

b)

False

24.

If you throw a baseball straight up, what is its velocity at the highest point?

a)

9.8 m/s²

b)

9.8 m/s

c)

0 m/s²

d)

0 m/s

25.

If you throw a baseball straight up, what is its acceleration at the highest point?

a)

9.8 m/s²

b)

9.8 m/s

c)

0 m/s²

d)

0 m/s

26.

If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?

a)

6 m/s

b)

12 m/s

c)

18 m/s

d)

24 m/s

27.

As an object travels through the air, its vertical velocity

a)

changes continuously

b)

remains the same

28.

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?

a)

Shot Bullet

b)

Dropped Bullet

c)

Hit at Same Time

29.

Consider drops of water leaking from a water faucet. As the drops fall they

a)

remain at a relatively fixed distance from each other

b)

get farther apart

c)

get closer together

30.

Two balls of the same mass begin at a height of 2m. One is released from rest while the other begins with a horizontal velocity of 5m/s. Which object its the ground first?

a)

Ball A

b)

Ball B

c)

Both balls his the ground at the same time

d)

unable to determine with information given

31.

What force acts in the y direction that causes an object to travel in a parabolic arc?

a)

Friction

b)

Gravity

c)

Tension

d)

No force acting.

32.

A package is dropped from an airplane, where will the package hit the ground?

a)

A

b)

B

c)

C

33.

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

a)

120 m

b)

150 m

c)

180 m

d)

324m

34.

A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is

a)

45 km/hr

b)

50 km/hr

c)

54 km/hr

d)

55 km/hr

35.

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is

a)

200 m

b)

225 m

c)

245 m

d)

250 m

36.

Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is

a)

50 m

b)

75 m

c)

80 m

d)

85 m

37.

A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

a)

40 s

b)

45 s

c)

50 s

d)

55 s

38.

Two trains A and B are moving in opposite directions with speeds of 60 km/hr and 90 km/hr respectively . Their lengths are 1.10 km and 0.9 km respectively. The time taken by the train A to cross the train B in seconds is

a)

36

b)

45

c)

48

d)

54

39.

A goods train runs at the speed of 20 m/s and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?

a)

230 m

b)

240 m

c)

260 m

d)

270 m

40.

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is

a)

9

b)

9.6

c)

10

d)

10.8

41.

Which of the following represents the equation for acceleration?

a)

a = ƒt/v

b)

a = Δt/f

c)

A = Λd/t

d)

a = Δv/t

42.

Jordan and Caleb are riding their bikes past the grocery store. Which of the following is true?

a)

Jordan and Caleb are moving relative to their bike, but not the grocery store.

b)

Jordan and Caleb are not moving relative to the grocery store or their bikes.

c)

Jordan and Caleb are moving relative to the grocery store, but not their bikes.

d)

Jordan and Caleb are moving relative to their bikes and the grocery store.

43.

Galileo came up with the concept that different points of view would observe motion in different ways. Imagine that a ball is being dropped from the mast of a boat, what would the path of the ball be from a bystander on the shore?

a)

b)

44.

Galileo came up with the concept that different points of view would observe motion in different ways. Imagine that a ball is being dropped from the mast of a boat, what would the path of the ball be from a bystander on the boat?

a)

b)

45.

What is happening in the graph from point O to A?

a)

The object is moving SLOWLY

b)

The object is moving FAST

c)

The object is NOT moving

d)

The object is accelerating

46.

An eagle flies at constant velocity horizontally across the sky, carrying a turtle in its talons. The eagle releases the turtle while in flight. From the eagle’s perspective, the turtle falls vertically with speed v₁. From an observer on the ground’s perspective, at a particular instant the turtle falls at an angle with speed v₂. What is the speed of the eagle with respect to an observer on the ground?

a)

v₁+v₂

b)

v₁−v₂

c)

√(v²₁−v²₂)

d)

√(v²₂−v²₁)

47.

Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60 km/h and the other is moving at 40 km/h. In how many hours will they meet?

a)

1.5

b)

1.75

c)

2.0

d)

2.5

48.

An ant on a picnic table travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the ant's directional displacement relative to its original position

a)

25 cm at 21^o north of east

b)

52 cm at 51^o north of east

c)

29 cm at 59^o north of east

d)

70 cm at 21^o north of east

49.

A bug begins to crawl up a vertical wire at time t = 0. The velocity v of the bug at time t, 0 < t < 8, is given by the function whose graph is shown behind this text. At what value of t does the bug change direction?

a)

2

b)

4

c)

6.5

d)

7

50.

A particle's speed is decreasing if

a)

it's acceleration is positive

b)

it's velocity is positive

c)

it's velocity and acceleration have the same sign

d)

it's velocity and acceleration have different signs

51.

v(t)>0 means

a)

the particle is moving to the right

b)

the particle is moving to the left

c)

the particle has positive position

d)

the particle is at rest

52.

Which of the following can be used to determine when a particle is at rest?

a)

x(t)=0

b)

v(t)=0

c)

a(t)=0

53.

s(t) = t² - 20
Find the average velocity from t = 3 to t = 5.

a)

2

b)

4

c)

6

d)

8

54.

An objects distance from its starting point at time t is given by the equation
s(t) = t³ - 6t² - 4.
What is the speed of the object when its acceleration is 0?

a)

2

b)

-24

c)

22

d)

44

55.

If Distance is a function of Time, what is the average rate of change from 6 to 9 seconds?

a)

3.3 feet per second

b)

-10 feet per second

c)

-3.3 feet per second

d)

10 feet per second

56.

What is the total displacement of the object represented in this motion graph?

a)

0 meters

b)

300 meters

c)

450 meters

d)

600 meters

57.

What is the total distance of the object represented in this motion graph?

a)

0 meters

b)

100 meters

c)

140 meters

d)

200 meters

58.

The position of an object is given as a function of time by x = 3t² + 5t³- 2t
What is the acceleration of the object at time t = 2 s?

a)

64 m/s/s

b)

60 m/s/s

c)

66 m/s/s

d)

70 m/s/s

59.

What does a flat (horizontal) line on a velocity-time graph mean?

[Example section B on this graph]

a)

The object is not moving.

b)

The object is moving, but at a constant velocity.

c)

The object is accelerating, and its acceleration is positive.

d)

The object is accelerating, and its acceleration is negative.

60.

A horizontally-launched projectile arcs out and hits the ground below. The vertical displacement and the horizontal displacement are measured. What is the best equation to use to find the time the projectile was in the air?

a)

$\Delta\overrightarrow{x}=\overrightarrow{v}_x\cdot\Delta t$

b)

$\Delta\overrightarrow{y}=\overrightarrow{v}_{yi}\cdot\Delta t+\frac{1}{2}\cdot g\cdot\Delta t^2$

c)

$\overrightarrow{v}_{yf}=\overrightarrow{v}_{yi}+g\cdot\Delta t$

d)

$\Delta t=\sqrt{\frac{2\cdot\Delta\overrightarrow{y}}{g}}$

11th- Aromatic-Relative Motion

Total questions: 60

Worksheet time: 3hrs 32mins

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