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Flashcards in TEST 5 Deck (60):
1

LIQUIDS AND GASES "ANYTHING THAT FLOWS"

FLUIDS

2

2 MOLECULES TIGHTLY BONDED LIKE COILED SPRING, VIBRATE FASTER AND GET _____

FURTHER APART

3

______ IS RELATIVE TEMP, NOT "HOT"

MELTING

4

SOLID TO LIQUID, KEEP ADDING ____

ENERGY

5

FASTER AND FASTER VIBRATION CAUSES THE "SPRING" TO SNAP AND TURN TO

GAS

6

LIQUIDS V GASES-DIFF IS ATTRACTIVE FORCES, MUCH BIGGER WITH

LIQUIDS

7

3 STATES OF MATTER

SOLID-LIQUID-GAS

8

WHICH STATE IS COMPRESSIBLE?

GAS

9

WHICH STATE IS INCOMPRESSIBLE?

SOLID (PARTICLES CLOSE TOGETHER)

10

LOW DENSITY=MORE

SPREAD OUT

11

PRESSURE GOES ___ AS FORCE IS CONCENTRATED

UP

12

FASTER YOU MOVE A FLUID, THE LESS PRESSURE IT APPLIES

BERNELLIS PRINCIPLE

13

PRESSURE THROUGHOUT FLUID IS UNCHANGED (CONSTANT)

P1=F1/A1=F2/A2=P2

14

VOLUME DISPLACED BY OBJECT

BUOYANCY

15

IF BUOYANT FORCE IS GREATER IT

RISES

16

MORE VISCOUS, LESS FLOATING ABILITY, RELATED TO TEMP

VISCOCITY

17

SMOOTH FLOWING

LAMINAR

18

ROUGH FLOWING

TURBULENT

19

WIDER RIVER FLOW=____ FLOW DUE TO VOLUME

SLOWER

20

AS AREA GOES DOWN, VISCOCITY GOES

UP

21

INCREASE PRESSURE, VOLUME ____ (BOYLES LAW)

DECREASES

22

REPEATS, HAS RESTORING FORCE.

SIMPLE HARMONIC MOTION

23

IN SHM, MAX ACCEL IS AT THE TOP AND BOTTOM WITH ___ VELOCITY

0 (CHANGES DIRECTION)

24

IN SMH, AT MAX AMPLITUDE, VELOCITY=

0

25

ONE COMPLETE CYCLE =

PERIOD

26

RESTORING VALUE (SPRINGS CONSTANT IN N/M)

k

27

IN SMH, THE MID POINT=_____ VELOCITY

MAX

28

AS MASS GOES DOWN, FREQUENCY GOES

UP (INVERSE)

29

FREQUENCY UNITS

Hz

30

PERIOD UNITS

s

31

MECHANICAL WAVES NEED A

MEDIUM

32

TRANSVERSE WAVE AKA

LIGHT WAVE

33

LONGITUDINAL/COMPRESSIONAL WAVE=

SOUND WAVE (PARALLEL)

34

MOTION OF SOURCE AND MOTION OF WAVE ARE

PERPINDICULAR

35

SURFACE WAVE IS A COMBINATION OF

LONGIT. AND COMPRES.

36

IF 2 WAVES CRESTS OR TROUGHS MATCHUP YOU ADD THE AMPLITUDES, THIS IS KNOWN AS

CONSTRUCTIVE INTERFERANCE

37

IF 2 WAVES CRESTS TO TROUGH MATCHUP

DESTRUCTIVE INTERFERANCE

38

THE PLACE WHERE IT DOESNT MOVE BETWEEN WAVES

NODE

39

THE NUMBER OF CRESTS PER SECOND

FREQUENCY

40

THE PLACE WHERE IT DOESNT MOVE BETWEEN WAVES (NO DISPLACEMENT)

NODE (NO-DES)

41

THE NUMBER OF CRESTS OR COMPRESSIONS PER SECOND

FREQUENCY

42

AS SOURCE MOVES, PITCH CHANGES, THIS IS KNOWN AS THE

DOPPLER EFFECT

43

THE DISTANCE BETWEEN 2 SIMILAR POINTS ON A WAVE OR COMPRESSION

WAVELENGTH

44

INTENSITY OF THE WAVE, FROM MIDPOINT TO TOP OR BOTTOM

AMPLITUDE

45

NORMAL HEARING RANGE IN Hz

20-20000

46

IRREGULAR FLOW THAT IS CHARACTERIZED BY TINY WHIRLPOOL REGIONS

TURBULENT FLOW

47

flow of a fluid is when each particle follows a smooth path. The velocity of the fluid is constant at any point in the fluid.

LAMINAR

48

ENERGY LEVEL GOES UP _X WITH EVERY 10 DECIBELS WHILE LOUDNESS GOES UP _X

10,2

49

HOW ARE SONIC BOOMS CAUSED? SINGLE OR MULTIPLE BOOMS? DOES IT FOLLOW THE OBJECT THAT CAUSES IT?

SONIC BOOMS ARE CREATED BY AN OBJECT TRAVELING FASTER THAN THE SPEED OF SOUND. THE OBJECT IS TRAVELING FASTER THAN THE SOUND IT IS CREATING.

50

ANTI-NODE IS PRODUCED BY WHAT TYPE OF INTERFERENCE?

CONSTRUCTIVE

51

DESCRIBE SIMPLE HARMONIC NOTION AND HOW YOU KNOW IT

TYPE OF MOTION WHERE RESTORING FORCE IS DIRECTLY PROPORTIONAL TO THE DISPLACEMENT AND ACTS IN THE DIRECTION OPPOSITE TO THE DISPLACEMENT.

52

WHAT IS THE DIFFERENCE BETWEEN TIME PERIOD AND FREQUENCY?

THE PERIOD IS THE RECIPROCAL OF THE FREQUENCY. THE PERIOD IS THE DURATION OF TIME OF ONE CYCLE IN A REPEATING EVENT. THE FREQUENCY IS THE NUMBER OF OCCURANCES PER UNIT TIME.

53

WHAT DETERMINES IF AN OBJECT SINKS OR FLOATS?

DENSITY DETERMINES IF AN OBJECT WILL SINK OR FLOAT, IF IT IS LESS DENSE THAN THE LIQUID IT IS IN IT WILL FLOAT. THE ABILITY OF AN OBJECT TO FLOAT IS DESCRIBED AS ITS BUOYANCY.

54

WHAT PRODUCES THE HUMAN VOICE?

VIBRATIONS IN VOCAL CHORDS

55

THE LOWEST FREQUENCY IN A SOUND WAVE IS THE

FUNDMENTAL

56

SOUND IS A ___ WAVE

COMPRESSIONAL

57

DECIBELS MEASURE CHANGE IN

PRESSURE

58

THE ___ OF SOUND WAVES MEASURE LOUDNESS

AMPLITUDE

59

IF A WAVES FREQUENCY INCREASES, ITS PERIOD

DECREASES

60

THE SPEED OF THE WAVE DEPENDS ON THE

MEDIUM