3rd Qtr EXAM

Question 1

speed, velocity, and acceleration are

Answer 1

descriptors
of motion

Question 2

are anything that

can be measured.

Answer 2

Physical quantities

Question 3

Quantity described using the

magnitude (number) and unit.
Ex: 100 m

Answer 3

Scalar quantities

Question 4

Quantity described using the

magnitude, unit, and direction.

Answer 4

Vector quantities

Question 5

What quantities are Displacement Velocity Acceleration

Answer 5

Vector

Question 6

is a graphical illustration

that clearly represents the position of

moving objects at equal time intervals.

Answer 6

Motion Diagram

Question 7

The distances of the motion do not need to

be exact, but they must clearly show if the

object is moving

Answer 7

Positively or Negativly

Question 8

use of a single point to represent the

motion of an object

Answer 8

Particle model

Question 9

the total path length taken by an object

from one point to another

Answer 9

Distance

Question 10

Distance scalar or vector?

Answer 10

Scalar

Question 11

-shortest length between two points
- a vector quantity, fully described using

magnitude and direction

Answer 11

Displacement

Question 12

• the first to use the

quantities distance and

time to describe precisely

how fast or how slow a

moving object is

Answer 12

Galileo Galilei

Question 13

Distance speed time formula

Answer 13

speed x Time

Question 14

m/s

Answer 14

Meters per second

Question 15

km/h or kmph

Answer 15

Kilometers per hour

Question 16

mph

Answer 16

Miles per hour

Question 17

cm/s

Answer 17

centimetres per second

Question 18

• How fast you are traveling at a given instant in time

Answer 18

Instantaneous speed:

Question 19

• indicates the instantaneous speed of a vehicle

Answer 19

Speedometer:

Question 20

Average speed Formula

Answer 20

Total Time

Question 21

The speed of an object throughout its travel

Answer 21

Average Speed

Question 22

Scalar quantity that

tells only the

magnitude (number) or
speed that the car is

moving

Answer 22

Speed

Question 23

• Vector quantity that
  tells the magnitude
  (number) or speed of
  the car and the direction

it is moving to

Answer 23

Velocity

Question 24

Displacement velocity time formula

Answer 24

Velocity x Time

Question 25

- Velocity at a specific moment

Answer 25

Instantaneous Velocity

Question 26

- Overall velocity over time

Answer 26

Average Velocity

Question 27

is a disturbance that travels from the source to another place through a medium.

Answer 27

A wave

Question 28

the object or substance through which the wave travels.

Answer 28

Medium

Question 29

Sources of waves are

Answer 29

vibrating objects

Question 30

* Require a medium through which to travel * It can be solids, liquids, and gas. * Energy is transferred through vibration of particles of the medium.

Answer 30

Mechanical Waves

Question 31

Do not need a medium to travel * Can travel through a vacuum (empty space)

Answer 31

Electromagnetic Waves

Question 32

The particles of the medium move up and down PERPENDICULAR to the direction of motion of the wave.

Answer 32

Transverse

Question 33

The particles of the medium move in a direction back and forth PARALLEL to the direction of motion of the wave.

Answer 33

Longitudinal

Question 34

the highest point of the wave

Answer 34

Crest

Question 35

the lowest point of the wave

Answer 35

Trough

Question 36

- the midpoint of a wave

Answer 36

Equilibrium Position

Question 37

- the height of the wave, measured from midpoint to either crest or trough; describes the amount of energy the wave carries

Answer 37

Amplitude

Question 38

distance between succeeding identical parts (one crest to the next crest or from one trough to the next trough)

Answer 38

Wavelength

Question 39

the number of waves that pass in one second

Answer 39

Frequency

Question 40

- the time it takes to complete one wave

Answer 40

Period

Question 41

- speed of the wave as it travels

Answer 41

Wavelength

Question 42

HOW HUMANS PRODUCE SOUND

Answer 42

1.Airflow 2. Vocal Chord Vibration 3. Sound Wave Generation 4. Articulation and Reasonance

Question 43

Audible Sound:

Answer 43

20 Hz to 20,000 Hz

Question 44

- below 20 Hz - how elephants and whales communicate with each other for protection, attracting mates, and finding food

Answer 44

Infrasonic sound

Question 45

above 20,000 Hz - dolphins and bats send ultrasonic waves and they can detect if there are any obstacles based on the time it takes for the wave to come back (echolocation)

Answer 45

Ultrasonic sound

Question 46

Highness of Lowness of a sound

Answer 46

Pitch

Question 47

Pitch is dictated by

Answer 47

Frequency

Question 48

Intensity

Answer 48

Loudness

Question 49

The loudness of a sound is dictated by it's

Answer 49

Amplitude

Question 50

unit of intensity for sound

Answer 50

Decibel

Question 51

Tone quality

Answer 51

Timbre

Question 52

In the 1600s, light is believed to have a stream of particles called

Answer 52

Corpuscles

Question 53

Newton believed that light behaves like a

Answer 53

Particle

Question 54

Christian Huygens proposed that light behaves like a

Answer 54

Wave

Question 55

proves that light is a wave

Answer 55

Diffraction

Question 56

came up with a theory known as the dual nature of light.

Answer 56

Max Planck

Question 57

Light is what kind of wave?

Answer 57

Electromagnetic

Question 58

produce their own light

Answer 58

Luminous Objects

Question 59

allow light to pass through

Answer 59

transparent

Question 60

Only allows some light to pass through

Answer 60

Translucent

Question 61

Does not allow light pass through

Answer 61

Opaqe

Question 62

Speed of light

Answer 62

= 300,000 km/s

Question 63

Light travels fastest in

Answer 63

Gas

Question 64

Sound travels fastest

Answer 64

Solid

Question 65

Intensity (brightness) =

Answer 65

Amplitude

Question 66

The brighter the light, the ___________it has with darkness.

Answer 66

more contras

Question 67

- varies as light carries different amounts of energy - gives light its different colors

Answer 67

Wavelength

Question 68

Inversely proportional to wavelength

Answer 68

Frequency

Question 69

Fast movement of atoms & molecules

Answer 69

Higher kinetic energy

Question 70

refers to the sum of the kinetic energies of all the particles

Answer 70

Thermal Energy

Question 71

refers to the average kinetic energy of all the particles

Answer 71

Temperature

Question 72

0: water freezes 100: water boils

Answer 72

Anders Celsius

Question 73

32: water freezes 212: water boils

Answer 73

Daniel Fahrenheit

Question 74

Absolute zero: Lowest possible temperature

Answer 74

Lord Kelvin

Question 75

Heatflow

Answer 75

Hot to cold

Question 76

When two objects are already at the same temperature and no heat transfer occurs between them

Answer 76

Thermal Equilibrium

Question 77

unusual hot weather condition wherein the temperature is unusually high that it goes beyond what is normally recorded

Answer 77

Heat Waves:

Question 78

- occurs when objects are in direct contact with each other

Answer 78

Conduction

Question 79

- Heat is transferred through the movement of liquids or gases

Answer 79

Convection

Question 80

- Does not rely on any contact between the source of heat and the object being heated

Answer 80

Radiation