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PHY BK ANS 3B

 Essay regarding PHY BK ANS 3B

3B Wave Motion 2

5

Chapter 5

Mother nature of Waves

Practice five. 1 (p. 7)

one particular

B

two

D

several

(a) Slanted wave

11

Speed sama dengan f  = a few  zero. 2 = 1 meters s1

one particular 1

(ii) Period = = = 0. 2 s

f 5

(a) (i)

(b) A bulkier string (length unchanged) has

greater mass per device length. Therefore ,

(b) Longitudinal wave

some

(a) Normal water wave and EM say

(b) Sound wave

your five

12

Intended for case My spouse and i, energy is usually transferred to the cork

straight from the natural stone. For case II, energy is

used in the natural through normal water waves.

6th

= 1 ) 6667

= 1 . 67 m s1

(b) By v sama dengan f,

via what starts off the say, e. g. a rock.

Wavelength sama dengan

Practice five. 2 (p. 21)

one particular

C

2

C

3

A

some

D

5

C

6th

C

six

B

8

(a) C

13

(c)

v 1 ) 6667

sama dengan

= zero. 833 m

f

a couple of

12

=4m

3

12

(b) Wave speed = = 6th m s1

2

(a) Wavelength sama dengan

(c)

By simply v sama dengan f,

consistency =

versus 6

sama dengan = 1 . 5 Hz

λ four

Practice your five. 3 (p. 29)

(b) A

15

the wave speed decreases.

distance went

(a) Wave speed =

time taken

5

=

3

A subject floating upon water vibrates as a influx

passes this. The energy of the object comes

9

Character of Surf

B

4

= 0. 16 meters

25

range travelled

(b) Speed =

time used

4

= = zero. 4 meters s1

12

v 0. 4

(c) Frequency sama dengan =

= 2 . 5 Hz

λ 0. sixteen

1

W

2

A

3

(a) Wavelength sama dengan 20 cm

λ 0. 2

(b) Speed = f = =

= 2 m s1

To 0. you

4

(a) Amplitude sama dengan 50 centimeter

(a) Wavelength =

(b) Time taken = a couple of  a couple of = four s

a few

From the chart, the period in the wave is 4 s i9000.

By versus = f,

wavelength =

W and Y happen to be momentarily at rest.

X is definitely moving up wards.

v

sama dengan vT sama dengan 10  4 sama dengan 40 meters

f

Z is going downwards.

New Senior Second Physics at Work

1

 Oxford University Press 2009

3B Wave Motion II

Chapter a few

(b) (i)

6

Character of Ocean

Particles Back button and Z are in phase.

(ii) Particles T and Con are in antiphase.

(iii) Particle T is on a wave crest at

capital t = 0. 6 h.

8

(a) (i)

Wavelength = 6th. 4 cm

(ii) Seeing that particle P undergoes the

smallest range of oscillation for

the instances shown, S should have

1

oscillated pertaining to period from t = 0

4

to t = 0. 5 s i9000.

Frequency sama dengan

0. twenty-five

= 0. 5 Hz

0. 5

(iii) Velocity = f

= zero. 5  0. 064

= zero. 032 m s1

(b) The say is traveling towards the right.

Revision physical exercise 5

Qmc (question multiple choice ) (p. 34)

1

C

2

A

3

C

4

G

From the displacement–distance graph,

six

(a) (i)

wavelength of the wave is definitely 0. a few m.

Amplitude = 15 cm

By v = f,

(ii) Wavelength sama dengan 2 meters

frequency =

(iii) Particle W has at least oscillated for

0. five period from t sama dengan 0 to t sama dengan 0. 2 s.

zero. 5

Minimum frequency sama dengan

0. a couple of

5

A

6

C

v 20

=

= 40 Hertz

λ zero. 5

By v = f,

sama dengan 2 . a few Hz

sixth is v 12

= = some km

farreneheit

3

1

A and B will be 1  apart. Therefore , when A is definitely

4

wavelength =

(iv) Minimum influx speed

sama dengan minimum consistency  

= 2 . 5  2 sama dengan 5 m s1

over a crest, W is at their equilibrium situation.

New Mature Secondary Physics at Work

two

 Oxford University Press 2009

3B Wave Motion II

several

Chapter a few

C

Character of Ocean

(b)

The maximum wavelength is usually 0. 4 m.

Maximum speed

= frequency  maximum wavelength

= 15  0. 4

sama dengan 4 meters s1

almost eight

C

(Correct wavelength)

(1A)

Period sama dengan 16 t

(Correct amplitude)

(1A)

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