Physics Chapter 1&2

Question 1

Unrelated

Answer 1

Two items are not associated

Question 2

Related / proportional

Answer 2

Two items that are associated or affiliated. Relationship does not have to be specified.

Question 3

Directly related / directly proportional

Answer 3

Two items that are associated such that when on item increases the other increases

Question 4

Inversely related / inversely proportional

Answer 4

Two items are associated such that when one item increase the other decrease

Question 5

Reciprocal

Answer 5

Two numbers with a reciprocal relationship are multiplied together, the result is one. INVERSE

Question 6

Increase by a factor

Answer 6

Multiply

Question 7

Decrease by a factor

Answer 7

Divide

Question 8

1 inch is how many cm

Answer 8

2.54

Question 9

Positive exponent , 1.0 x 10^6=

Answer 9

Greater than 10, = 1,00,000

Question 10

Negative exponent, 1.24 x 10^-7

Answer 10

Less than one, .000000124

Question 11

Sound pulses created by transducer travel through-

Answer 11

Biological tissue or media

Question 12

All waves carry-

Answer 12

Carry energy from one location to another

Question 13

What type of wave is sound

Answer 13

Mechanical

Question 14

Molecules in a sound wave are

Answer 14

Compressed and rarefied

Question 15

How does sound waves travel

Answer 15

Straight and longitudinal

Question 16

Acoustic propagation properties

Answer 16

The effects of the medium upon the sound wave

Question 17

Biological effects

Answer 17

The effects of the sound wave upon the biological tissue through which it passes

Question 18

Sound waves are identified by OSCILLATION in acoustic variables. What 3 variables

Answer 18

Pressure (Pa), density kg/cm3, distance cm

Question 19

True or false: if one of the acoustics variables has a rythmic oscillation, then the wave is considered a sound wave

Answer 19

True

Question 20

Sound waves are also known as

Answer 20

Acoustic waves

Question 21

What are used to describe the characteristics of sound waves

Answer 21

Acoustic parameters

Question 22

What are the 7 parameters

Answer 22

Period, frequency, amplitude, power, intensity, wavelength, propagation speed

Question 23

How do particles move in a transverse plane

Answer 23

Perpendicular to the direction that the waves propagates

Question 24

How do particles move in a longitudinal plane

Answer 24

Particles move the same direction that the wave propagates

Question 25

Is sound a transverse or longitudinal plane

Answer 25

Longitudinal

Question 26

Describe in-phase waves

Answer 26

When both peaks (max values) and throughs (min value) occur at the same time and location

Question 27

Describe out-of-phase

Answer 27

When both peaks and throughs occur at different times

Question 28

Describe interference

Answer 28

When two waves traveling at the same time and location lose their characteristics and form a single wave

Question 29

Constructive interference

Answer 29

In-phase waves result in greater amplitude than either components. Where wave is larger.

Question 30

Destructive interference

Answer 30

Out-of-phase waves results in a lesser amplitude wave then at least one of the previous waves.

Question 31

Complete destructive

Answer 31

When two out-of-phase waves are of equal amplitude. No waves

Question 32

Interference of waves with diff frequencies

Answer 32

Waves of diff frequencies interfere. Both constructive and destructive interference