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biophysics lec 6

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

a disturbance that transfers energy from one place to another without requiring any net flow of mass

(a)  

2.
wave decrease the mass
a)
true
b)
false
3.

compare between mechanical and electromagnetic waves

(a)  

4.
longitudinal is not present in electromagnetic
a)
true
b)
false
5.

compare between Longitudinal Wave and Transverse waves

(a)  

6.
highest part of transverse wave
a)
crest
b)
Troughs
c)
Compressions
d)
Rarefactions
7.
lowest part of transverse wave
a)
crest
b)
Troughs
c)
Compressions
d)
Rarefactions
8.
The close together part of the longitudinal wave
a)
Rarefactions
b)
crest
c)
Compressions
d)
troughs
9.
The spread out part of the longitudinal wave
a)
Rarefactions
b)
crest
c)
Compressions
d)
troughs
10.

the length of one cycle

(a)  

11.

the maximum distance a particle gets from its undisturbed position

(a)  

12.

time required for one cycle

(a)  

13.

number of cycles in a certain time, usually in 1 second.

(a)  

14.
the speed of a wavelength can be given by which law
a)
frequency X wavelength
b)
wavelength /periodic time
c)
both of the above
d)
none of the above
15.
frequency equals
a)
wavelength /periodic time
b)
1/periodic time
c)
distance/time
d)
none of the above
16.

the measuring unit for frequency

(a)  

17.

The amount of energy transmitted by a sinusoidal wave per unit time through each unit area perpendicular to the direction of propagation

(a)  

18.

sound waves with frequencies above the normal human range of hearing

(a)  

19.

description of how high or low the sound seems to a person

(a)  

20.
type of waves are mechanical and microorganism waves
a)
true
b)
false
21.
rarefactions means the close together part of the wave
a)
true
b)
false
22.
calculate
4 lines
23.

how loud or soft a sound is perceived to be

(a)  

24.

sounds with frequencies below the normal human range of hearing

(a)  

25.
the velocity of sound in air equals 343m/s لو جت 334 هو قالها كده في الفيديو بس الرقم الصح 343 مش عارف بقي
a)
true
b)
false