Ronald rides a jeepney going to school. While traveling, the jeepney driver suddenly applied force to the brakes. He notices that his body moves forward, then the jeepney moves again, and his body moves backward. Which property of matter illustrates this observation?

Which quantity has the greatest influence on the amount of kinetic energy a vehicle has while traveling down the road?

In 1947, Chuck Yeager became the first pilot inhistory confirmed to have exceeded the speed of sound in level flight. Which ofthe following reason did Chuck Yeager’s team consider in choosing a highaltitude to break the sound barrier? 

A rainbow can be seen in the sky after the rain.Which of the following statements best explains this spectacularphenomenon? 

Metals like gold, silver, iron, and copper are good heat and electrical conductors. Which of the following justifies metals as conductors of heat and electricity? 

Which of the following electrical symbols represents a resistor?   

Current is directly proportional to voltage and inversely proportional to resistance. Across a circuit, what will happen to the current when the resistance is held constant while the voltage is doubled?

In the table below, which of the following electrical appliances has the highest amount of current flowing in it?

Electrical Appliances                                    Voltage (V)                             Resistance (Ω)

Electric fan                                                                   220                                                   35

Rice cooker                                                                  220                                                   40

Television                                                                      220                                                   45

Washing machine                                                     220                                                   50

Christmas lights that were used as decorations during the holiday season are typical examples of a series circuit connection. In a series circuit, if one light bulb is burned out, what will happen to the other light bulbs? 

Which of the following is a disadvantage of connecting too many bulbs in a parallelconnection? 

Most appliances around the house use electricitywhich requires several safety devices to prevent fire and electrocution. Whichof the following statements is NOT TRUEabout safety devices used at home? 

What device shows the expansion of air when there is an increase in temperature?

Refer to the data in the table below, whichvehicle has the highest net force applied?

Vehicles                                           Mass (kg)                                 Acceleration (m/s²)

Bike                                                         100                                                            30

Motorcycle                                         120                                                             22

Tractor                                                   150                                                             15

Truck                                                        200                                                             10

Tug of war is a game that tests the strength oft wo opposing teams. Two groups of Grade 8 students in a tug of war are pulling the rope with the same amount of forces. Applying Newton’s Law of Motion, what will happen to the groups of students?

Which of the following situations DOES NOT exhibit potential energy?

Elsa yells her name while having a tour inside acave. She noticed that the sound bounced back at the walls of the cave andtravelled back to her ears. What is this reflected sound produced in the givensituation?

The electromagnetic (EM) spectrum shows theranges of the different types of electromagnetic radiation. For light waves,their frequency is related to their energy. Among the different colors of light, which has the lowest frequency and the least energy?

Angelito and Efren were conducting an experimentto observe the major effects of heat transfer known as temperature change.While conducting the experiment, they pour hot and cold objects in contact withone another. What will be the result of the experiment?

It is a common observation during thunderstormthat the flash of lightning is seen first before the thunderclaps are heard.How can you explain this phenomenon?

The color of the object we see depends on the color being reflected by the object. Which of the following is NOT TRUE for black objects?

Which of the following electrical safety measures prevents electric shock on the external casing of appliances?

A man pushes a box, and it does not move. What kind of force prevents the box from moving?

Using a baseball bat, a player hits a ball. Ifthe action force is the force of the baseball bat on the ball, which of thefollowing is its reaction force? 

 In a local supermarket, you can easily push a shopping cart with 10 kilograms of household products than a shopping cart with20 kilograms of household products to the counter. Which Law of Motion best explains the given situation?

A fault is a thin zone of crushed rock between two blocks of rock and can be any length, from centimeters to thousands of kilometers. An example is the Lubao Fault, located in the province of Pampanga. When an earthquake occurs on a fault, the rock on one side of the fault slips to the other.  How do faults cause earthquakes?

What do you call the place in the Earth's crust where an earthquake first occurs?

You are a seismologist trying to find the exact location of a recent destructive earthquake. Which        of the following sequences must be applied?     

I.      Obtain data from three seismic stations.

II.     Solvefor epicentral distance from the stations.

III.   Use a triangulation method to locate the earthquake's epicenter.

IV.  Determine the time interval between the arrival of the P and S waves.

Seismologists study earthquakes; they locate the epicenter of an earthquake. In what way can they find the epicenter?

The following are reasons why a typhoon weakensas it hits the landmass EXCEPT.

Typhoons are affected by landmasses and bodies of water. Which of the following distinguishes the characteristics of landmasses and bodies of water?

The Philippines is above the equator and in theglobe's northern hemisphere. How does the wind blow in the northern hemisphere?

How does the orbit of a comet compare to theorbit of a planet?

If your house is located near a fault line, andyou DO NOT have the means to transfer to        another place, which of the following would you do to reduce the risk ofan earthquake?

I.       transfer to relatives’ house

II.    practice safety precautions

III.  know what to do before, during, and after the earthquake      

  IV. seek help from the local officials

 What Public Storm Warning Signal (PSWS) is in effectif the maximum wind speed is 118-184       km/h?

On April 22, 2019, a 6.1 magnitude earthquakestruck the island of Luzon in the Philippines. What would you expect to occurfrom an earthquake that measures 6.1 magnitude earthquake?

Scientists use different ways to find out if afault is active. Which one is NOT included?

 How do scientists learn about the physicalproperties of the Earth's different layers?

Which of the following statements best describes primary wave?

Merla observed that these meteorological systems had little effect on typhoons from the west. 

    On the other hand, typhoons that arise in the east are alwaysaccompanied by severe gusts and, 

     on occasion,floods. What could explain her findings if their community in General SantosCity       was sandwiched between atwo-kilometer-away mountain range to the west and a kilometer-       away sea to the east?

On September25, 2022, Typhoon “KARDING” made landfall at Quezon before its second landfall in Dingalan, Aurora from sustained winds of 195 km/h and gustiness of 240 km/h. The eyewall of the typhoon also affected eight regions in the Philippines including Central Luzon with violent winds to torrential rains. The typhoon left the Philippine Area of Responsibility (PAR) on September 26, 2022. What will happen to the typhoon given these situations, and what will be the most likely prediction?

Why would the global temperature of the Earth drop when struck by a massive as asteroids

Why do scientists study comets

   If you are one of the PAGASA team members youare obliged to do the following EXCEPT.

I.          Deliver weather forecasts and advisories.

II.       Rescue trapped survivors of a disaster. 

III.    Provide information to the public about typhoonsand flood warnings. IV. Provide facts related to climatology, meteorology, and astronomy

 In what order do the three types of seismic waves arrive at a seismograph?

What do you call the tropical cyclones that arefound in the North Western Pacific Ocean?

How would you describe the weather in the eye of a typhoon?

 Which of the following refers to rocky bodies that have fallen from space and hit the earth’s surface?

Earthquakes happen along a fault line. Which ofthe following is NOT TRUE about fault?