LET REVIEWER MET Questionnaire PDF

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Summary

From the Latin word “scientia” which means knowledge 01. SCIENCE Any methodological activity, such as observation, experimental investigation, and theoretical explanation, aimed at discussing natural phenomena 02. SCIENCE Systematized knowledge based on facts 03. SCIENCE Division of Science that dea...

Description

01. From the Latin word “scientia” which means knowledge

01. SCIENCE

02. Any methodological activity, such as observation, experimental investigation, and theoretical explanation, aimed at discussing natural phenomena

02. SCIENCE

03. Systematized knowledge based on facts

03. SCIENCE

04. Division of Science that deals with nature and natural phenomena

04. NATURAL SCIENCE

05. Two Branches of Natural Science

05. PHYSICAL SCIENCE – deals with non-living things BIOLOGICAL SCIENCE – deals with living things

06. An orderly ,logical, and rational manner of solving problems

06. SCIENTIFIC METHOD

07. Enables and leads scientists toward unveiling the truths about observable phenomena, helping them construct their clear representations

07. SCIENTIFIC METHOD

08. Steps in Scientific Method or Solving Problems

08. 1. Identify, state, know, and understand the problem 2. Identify the variables 3. Formulate Hypothesis 4. Experimentation 5. Draw conclusion by stating findings in the manner that allows the problem to be solved/answered. 6. Application (optional step)

09. Scientific Method 09.1 The question formulated from observations to which you want to find specific answers  Identify, state, know, and understand the problem  Identify the variables  09.2 Types of Variables 1. The one which is manipulated or changed 2. The one which is measured and observed; depends on the independent variable 3. Example: In the experiment “The Effect of Sunlight on the Growth of the Plants” Sunlight – Growth –

09.1 THE PROBLEM

09.2 1. INDEPENDENT VARIABLE – manipulated or changed 2. DEPENDENT VARIABLE – one that is measured and observed 3. Sunlight – INDEPENDENT VARIABLE Growth – DEPENDENT VARIABLE 09.3 HYPOTHESIS

09.3 It is an inference or a scientific guess. It can be positive or negative. 09.4 EXPERIMENTATION 09.4 Designed and conducted to test the validity to the hypothesis

1. A good experiment is one where the

1. When can you consider that an experiment is good?

least time, effort, and logistics are used

2. Steps in Performing an Experiment

2. A. GATHER THE MATERIALS TO BE USED IN EXPERIMENTATION B. SET THE MATERIALS C. OBSERVE

D. GATHER THE DATA E. INTERPRET THE DATA 09.4 This is done through stating the findings in the manner that allows the problem to be solved/answered.

09.4 DRAWING CONCLUSION

09.5 This step is optional, if the results of the experiment are good enough, then there will be a need to apply the results of the experiment in real-life situations.

09.5 APPLICATION

10. This is the scientist’s way of doing and thinking, especially when performing an experiment or any scientific investigations. 10.1. Pays particular interest and asks questions about observations

10. SCIENTIFIC ATTITUDE

10.2. Reports results of observations truthfully

10.2. HONESTY

10.3. Accepts that he does not have the monopoly of ideas about the phenomenon

10.3. HUMILITY

10.4. Ability to separate his own personal ideas from the actual findings

10.4. UNBIASED

10.5. Readiness to accept or consider opinions of others

10.5. OPEN-MINDEDNESS

10.6. Does not easily give up when investigation seems difficult

10.6. PATIENCE AND PERSEVERANCE

11. Generalization formulated from observations that are proven correct and true.

11. LAW

12. Generally accepted explanations of observations, but are yet to be fully proven because some questions still need to be answered

12. THEORY

13. Branches of Physical Science 13.1. Deals with matter and energy and of the interactions between two

10.1. CURIOSITY

13.1. PHYSICS

13.2. Deals with the composition and properties of matter

13.2. CHEMISTRY

13.3. Deals with the physical aspect of the Earth

13.3. EARTH SCIENCE

14. Scientific Notation 14.1. Express 361000 in scientific notation 14.2. Express .000361 in scientific notation 15. The process of comparing the quantity to be measured and the corresponding standard

14.1. 361000 = 3.61 x 105 14.2. .000361 = 3.61 x 10-4 15. MEASUREMENT

15.1. The ________ is the one being measured, not the object 16. Physical Quantities 16.1. What are the two physical quantities? 16.2. These are also called basic quantities?

15.1. QUANTITY

16.1. FUNDAMENTAL QUANTITIES and DERIVED QUANTITIES 16.2. FUNDAMENTAL QUANTITIES

16.3. The following are the fundamental quantities, identify their corresponding standard units  Length  Mass  Time  Temperature  Luminous intensity  Electric current

16.3.

16.4. These are quantities that are taken from fundamental quantities

16.4. DERIVED QUANTITIES

16.5. Example of Derived Quantities  This is taken from the fundamental quantity -length  This is derived from fundamental quantities length and mass

16.5.  AREA = lxl

17. Relationship between Quantities 17.1. When one quantity increases, the other quantity increases also in proportion to each other - A is ________________ to B

     



LENGTH – METER MASS – KILOGRAM TIME – SECOND TEMPERATURE – KELVIN LUMINOUS INTENSITY – CANDELA ELECTRIC CURRENT – AMPERE

DENSITY = mass/volume, and volume=lxlxl

17.1. DIRECTLY PROPORTIONAL Directly proportional A/B=K

17.2. If A is plotted against B, and the relationship between quantities is directly proportional the resulting graph line is _________________

17.2.STRAIGHT LINE SLANTING TO THE RIGHT

17.3. When one quantity increases, the other quantity increases also, but faster and greater than the other. - A is _________ to ______

17.3. DIRECT-SQUARE PROPORTIONALITY Directly proportional to B2 A/B2=K

17.4. If A is plotted against B, and the relationship is direct square proportionality the resulting graph line is ______

17.4. PARABOLA

17.5. When one quantity increases, the other quantity decreases - A is ___________ to B

17.5. INVERSELY PROPORTIONAL Inversely proportional AB=K

17.6. If A is plotted against B, and the relationship between quantities the resulting graph line is __________

17.6. HYPERBOLA

18. Physical Quantities are also classified as _________ and ________ quantities 18.1. Are the quantities with magnitude only Examples: Area, Density, Distance, Speed

18. SCALAR and VECTOR QUANTITIES

18.2. Quantities with both magnitude and direction Examples: Displacement, Velocity, Force

18.2. VECTOR QUANTITIES

18.1. SCALAR QUANTITIES

18.3. VECTOR QUANTITIES

18.3. Quantities that can be represented by an arrow, the tall represents the magnitude and the arrowhead represents the direction 19. Push or pull that changes or tends to change the motion; It is a vector quantity

19. FORCE

19 1 Its unit is NEWTON or kg-m/sec2 in MKS

19.1 FORCE

19.2 Sets of Forces  Forces whose lines of action are parallel to each other  Forces whose lines of action meet at a common point

19.2 SETS OF FORCES  PARALLEL FORCES 

CONCURRENT FORCES

19.3 A force between two surfaces that opposes 19.3 FRICTION the motion of the body 19.4 Laws of Equilibrium  For a body to be at rest, the sum of all the forces should be equal to zero  For a body to be at rest, the sum of all the torques should be equal to zero.

19.4 LAWS OF EQUILIBRIUM  FIRST LAW OF EQUILIBRIUM

20. Continuous change in position of a body with respect to a reference point

20. MOTION

20.1 Rate of motion

20.1 SPEED v=d/t v=speed, d=distance, t=time

20.2 Rate of motion, only it is a vector.

20.2 VELOCITY

20.3 One where the speed or velocity remains constant

20.3 UNIFORM MOTION

20.4 The change in velocity at a given time interval

20.4 ACCELERATION

20.5 Motion along a straight path. An example of this is the motion of a freely falling body

20.5 RECTILINEAR MOTION

20.6 Motion along a curved path. Circular motion and projectile motion are examples of this motion

20.6 CURVILINEAR MOTION

20.7 What are Newton’s Three Laws of Motion ?

20.7   

20.8 A body at rest will remain at rest and a body in motion will continue to move in uniform motion, unless acted upon by an unbalanced

20.8 LAW OF INERTIA

20.9 When acted upon by a net force, the body will accelerate, and that the acceleration of the body is directedly proportional to the force applied and inversely proportional to the mass of the body F=ma

20.9 LAW OF ACCELERATION

20.10 For every action, there is an equal but opposite reaction

20.10 LAW OF INTERACTION

21. The product of the force applied and the displacement through which the force is directed W=Fd measured in ______ or _________

21. WORK W=Fd measured in N.m or joule (J)



SECOND LAW OF EQUILIBRIUM

NEWTON’S THREE LAWS OF MOTION LAW OF INERTIA LAW OF ACCELERATION LAW OF INTERACTION

21.1 Work can be done easier and faster with the use of _________ 21.2 ______ is any device that helps in doing work

21.1 MACHINES

21.2 MACHINE

21.3 What are the six simple machines?

21.3 LEVER, PULLEY, WHEEL AND AXLE, INCLINED PLANE, SCREW , AND WEDGE

21.4 It is the number of times a machine can do work compared to the work done without a machine

21.4 MECHANICAL ADVANTAGE

21.5 The ___________ is the ratio of work output to work input Formula: ______________

21.5 EFFICIENCY OF A MACHINE FORMULA : EFFICIENCY = WORK OUTPUT / WORK INPUT X 100%

22. Rate of doing work

22. POWER

22.1 Formula for power:

22.1 FORMULA FOR POWER: P=W/t, measured in joule/sec or watt

23. Ability of doing work

23. ENERGY

23.1 What are the different forms of energy ?

23.1 MECHANICAL ENERGY (POTENTIAL ENERGY, KINETIC ENERGY), ELECTRICAL ENERGY, CHEMICAL ENERGY, NUCLEAR ENERGY, RADIANT ENERGY, THERMAL ENERGY

23.2 What are the two forms of mechanical energy?

23.2 MECHANICAL ENERGY – POTENTIAL ENERGY , KINETIC ENERGY

23.3 Energy due to position of the body

23.3 POTENTIAL ENERGY

23.4 FORMULA OF POTENTIAL ENERGY

23.4 POTENTIAL ENERGY  PE=mgh (m=mass of the body, h= height, g=acceleration due to gravity which is 9.8m/s2

23.5 Energy of the body which is in motion

23.5 KINETIC ENERGY

23.6 FORMULA OF KINETIC ENERGY

23.6 KINETIC ENERGY  1/2mv2

23.7 Energy of the moving electrons

23.7 ELECTRICAL ENERGY

23.8 Energy in the atoms and molecules of matter

23.8 CHEMICAL ENERGY

23.9 Energy resulting from the fission or fusion reactions in atoms

23.9 NUCLEAR ENERGY

23.10 Energy in the form of electromagnetic waves

23.10 RADIANT ENERGY

23.11 Internal energy of a body which is the total kinetic energy of the molecules of a body

23.11 THERMAL ENERGY

24. The mass of the substances at a given volume

24. DENSITY

25. Formula for density: 26. If the density of material or substance is greater than the density of the liquid, that material will __________

25. DENSITY  d=m/V 26. SINK IN THE LIQUID

27. If the density of the material or substance is 27. FLOAT IN THE LIQUID

less than the density of the liquid, the material will _________ 28. The greater the density of the liquid, the greater is the __________

29. BOUYANT FORCE

29. This is the force exerted at a given unit area 29. PRESSURE 30. Formula for pressure

30. PRESSURE  p=F/A

31. This type of pressure depends on the density and height of the liquid

31. LIQUID PRESSURE

32. Liquid pressure formula

32. LIQUID PRESSURE  p=dhg (p=liquid pressure, d=density of the liquid, h= height of the liquid, g=constant and does not affect the pressure)

33. Pressure that depends on the height

33. ATMOSPHETIC PRESSURE / AIR PRESSURE

34. The higher the position, the (thicker, thinner) is the air, the (lesser, greater) is the air pressure.

34. THE HIGHER THE POSITION, THE THINNER IS THE AIR, AND THE LESSER IS THE AIR PRESSURE

35. The total kinetic energy of molecules of a body

35. HEAT

36. The average kinetic energy of molecules

36. TEMPERATURE

37. TEMPERATURE CONVERSION  Celsius to Fahrenheit  Kelvin to Fahrenheit  Fahrenheit to Celsius  Celsius to Kelvin  Kelvin to Celsius  Fahrenheit to Kelvin

TEMPERATURE CONVERSION Celsius to ° F = 9/5 ( ° C) + 32 Fahrenheit Kelvin to Fahrenheit ° F = 9/5 (K - 273) + 32 ° C = 5/9 (° F - 32) Fahrenheit to Celsius Celsius to Kelvin K = ° C + 273 Kelvin to Celsius ° C = K - 273 Fahrenheit to Kelvin K = 5/9 (° F - 32) + 273

38. Temperatures that are the same at -40o

38. CELSIUS AND FAHRENHEIT

39. Water boils at _______

39. WATER BOILS AT 100°C or 212°F.

40. Water freezes at _________

40. WATER FREEZES AT 0°C and 32°F.

41. Absolute zero is _______

41. ABSOLUTE ZERO IS 0°K

42. Methods of Heat Transfer 42.1 Heat transfer from one molecule to adjacent molecule; takes place between objects by direct contact 42.2 This heat transfer by the actual movement of heated molecules; heat transfers takes

42.1 CONDUCTION

42.2 CONVECTION

within the fluid. The circulation of the heated molecules is called ___________ 42.3 Transfer of heat across space in the form of electromagnetic waves without involving particles. 43. Change of Phase 43.1 Change of phase from solid to liquid at its normal melting point

42.3 RADIATION

43.1MELTING OR FUSION

43.2 Change of phase from liquid to solid at its normal freezing point

43.2 FREEZING OR SOLIDIFICATION

43.3 Change of phase from liquid to gas at its normal boiling point

43.3 VAPORIZATION

43.4 Change of phase from gas to liquid

43.4 CONDENSATION

43.5 Change of phase from solid to gas without passing the liquid state

43.5 SUBLIMATION

44. A disturbance propagated through a medium.

44. WAVE

44.1 Two kinds of waves

44.2 Properties of waves

44.1 TWO KINDS OF WAVES: TRANSVERSE WAVES AND LONGITUDINAL WAVE 44.2 THE PROPERTIES OF WAVES: REFLECTION, REFRACTION, DIFFRACTION, AND INTERFERENCE 44.3 SOUND

44.3 This is a longitudinal wave, coming from a vibrating source, transmitted through a medium and interpreted by the sense of hearing. 45. Theories about the nature of Light

45. CORPUSCULAR THEORY WAVE THEORY ELECTROMAGNETIC WAVE THEORY

45.1 This theory is stated that light is made up of particles known as corpuscles

45.1 CORPUSCULAR THEORY

45.2 This theory stated that light is a wave.

45.2 WAVE THEORY

45.3 This theory stated that light is composed of electric field and magnetic field.

45.3 ELECTROMAGNETIC THEORY

45.4 Since light behaves as a wave, it can be _______, __________, and _________

45.4 REFRACTED, DIFFRACTED, and INTERFERED

45.5 The image formed by a mirror is due to _________ of light.

45.5 REFLECTION

45.6 The image formed by a lens is due to _______ of light.

45.6 REFRACTION

45.7 Two kinds of mirror 45.8 _____ can be convex or concave

45.7 PLANE MIRRORS and CURVED MIRROR 45.8 CURVED MIRROR

45.9 What are the two categories of lenses? 45.9 DIVERGING AND CONVERGING

46. Electricity 46.1 This is electricity at rest

46.1 ELECTROSTATICS

46.2 It only involves electric charges and their behavior

46.2 ELECTROSTATICS

46.3 Two kinds of electric charges

46.3 NEGATIVE CHARGE AND POSITIVE CHARGE

46.4 A kind of electric charge when there is an excess of electrons

46.4 NEGATIVE CHARGE

46.5 A kind of electric charge when there is a deficiency of electrons

46.5 POSITIVE CHARGE

46.6 Electricity due to moving charges

46.6 CURRENT ELECTRICITY

46.7 BASIC COMPONENTS OF ELECTRIC CIRCUIT Identify the unit and the measuring device  Current  Voltage  Resistance

46.7 BASIC COMPONENTS OF ELECTRIC CURRENT  CURRENT – AMPERE – AMMETER  VOLTAGE – VOLT - VOLTMETER  RESISTANCE – OHM – OHMMETER

46.8 This law stated that the current flowing is directly proportional to voltage and inversely proportional to resistance

46.8 OHM’S LAW (I=V/R)

47. Electromagnetism 47.1 Derived form Magnesia, an island in the Aegean Sea

47.1 MAGNETISM

47.2 An object that attracts magnetic objects like metals

47.2 MAGNET

47.3 A magnet has two poles, ______ and ______

47.3 NORTH AND SOUTH

47.4 In magnet, like poles ______ , unlike pole _____

47.4 LIKE POLES REPEL, UNLIKE POLES ATTRACT

47.5 A device that changes mechanical energy to electrical energy

47.5 GENERATOR

47.6 A device that changes electrical energy to mechanical energy

47.6 MOTOR

48. 1 The smallest and indivisible particle of matter it is composed of sub-particles

48.1 ATOM

48.2 A sub-particle of atom that carries negative charge

48.2 ELECTRON

48.3 A sub-particle of atom that carries positively charge

48.3 PROTON

48.4 A sub-particle of atom that is neutral in charge

48.4 NEUTRON

48.5 Types of Nuclear reaction

48.5 FISSION AND FUSION

48.6 A type of nuclear reaction that happens when a heavy nucleus splits together with the release of energy

48.6 FISSION

48.7 A type of nuclear reaction that happens

48.7 FUSION...