Question 1

What is the systematic approach to understanding the natural world through observation, experimentation, and reasoning called?

Accepted Answer

Science

Answer

Mathematics

Answer

Philosophy

Answer

Art

Question 2

According to Galileo, what happens to objects in motion without any external force?

Accepted Answer

They continue to move unless slowed by friction.

Answer

They stop immediately

Answer

They accelerate indefinitely

Answer

They begin to fall

Question 3

What is the equation for calculating work done by a force?

Accepted Answer

W = Fd

Answer

W = F - d

Answer

W = F + d

Answer

W = F/d

Question 4

What principle states that pressure applied to a confined fluid is transmitted equally in all directions?

Accepted Answer

Pascal's Principle

Answer

Newton's Laws

Answer

Archimedes' Principle

Answer

Bernoulli's Principle

Question 5

Pinaka poging mad student

Accepted Answer

Ferdi

Answer

Dom

Answer

Jared

Answer

Mishka

Question 6

What type of machine is a lever classified as?

Accepted Answer

Simple Machine

Answer

Compound Machine

Answer

Complex Machine

Answer

Motorized Machine

Question 7

In fluid mechanics, what term describes the force that acts upward on an object submerged in a fluid?

Accepted Answer

Buoyant Force

Answer

Frictional Force

Answer

Pressure

Answer

Gravity

Question 8

What does the term 'angular velocity' refer to in rotational motion?

Accepted Answer

Rate of change of angular displacement with respect to time

Answer

Rate of acceleration

Answer

Force applied on a body

Answer

Rate of change of position

Question 9

Which of the following is NOT a type of simple machine?

Accepted Answer

Motor

Answer

Lever

Answer

Inclined Plane

Answer

Pulley

Question 10

What symbol represents current in electrical circuits and what is its unit?

Accepted Answer

I (Amps)

Answer

R (Ohms)

Answer

V (Volts)

Answer

P (Watts)

Question 11

What is the primary characteristic of sound waves?

Accepted Answer

They are longitudinal waves.

Answer

They are surface waves

Answer

They travel faster in vacuum

Answer

They are transvers waves

Question 12

Who refuted Aristotle’s theories of motion?

Accepted Answer

Galileo

Answer

Archimedes

Answer

Einstein

Answer

Isaac Newton

Question 13

What is Pascal’s Principle?

Accepted Answer

Pressure is transmitted equally in all directions in a confined fluid.

Answer

Pressure is only exerted at the surface

Answer

Pressure increases with temperature

Answer

Pressure decreases with altitude

Question 14

What is the main distinction between a simple machine and a compound machine?

Accepted Answer

A simple machine has one basic mechanism, while a compound machine consists of two or more simple machines.

Answer

Compound machines cannot include levers

Answer

Simple machines are always manual, while compound are powered

Answer

Simple machines are more complex than compound machines

Question 15

What describes the upward force experienced by an object immersed in a fluid?

Accepted Answer

Buoyant force

Answer

Centrifugal force

Answer

Frictional force

Answer

Gravitational force

Question 16

Which type of circuit has components connected in a single path?

Accepted Answer

Series circuit

Answer

Integrated circuit

Answer

Short circuit

Answer

Parallel circuit

Question 17

What is the relationship defined by Ohm’s Law?

Accepted Answer

The current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance.

Answer

Current is unrelated to voltage

Answer

Resistance directly increases current

Answer

Voltage is independent of resistance

Question 18

What type of wave requires a medium to travel through?

Accepted Answer

Mechanical waves

Answer

Longitudinal waves

Answer

Electromagnetic waves

Answer

Transverse waves

Question 19

Which law states that every action has an equal and opposite reaction?

Accepted Answer

Newton's Third Law of Motion

Answer

Newton's First Law of Motion

Answer

Newton's Second Law of Motion

Answer

Galileo's Law of Motion

Question 20

What type of machine is a lever categorized as?

Accepted Answer

Simple Machine

Answer

Compound Machine

Answer

Complex Machine

Answer

Motor

Question 21

What device could be used to lift heavy loads by applying a small force, according to Pascal's Principle?

Accepted Answer

Hydraulic Lift

Answer

Pulley

Answer

Inclined Plane

Answer

Lever

Question 22

What principle explains whether an object sinks, floats, or stays suspended in a fluid?

Accepted Answer

Archimedes' Principle

Answer

Pascal's Principle

Answer

Galileo's Law

Answer

Newton's Third Law

Question 23

Which statement best describes force multiplication in a hydraulic system?

Accepted Answer

A small force applied on a small piston creates a larger pressure on a larger piston.

Answer

A large force applied on a small piston creates a smaller force on a larger piston.

Answer

Force is lost due to friction and cannot be increased.

Answer

Applying force on a small piston changes the direction of the force on a larger piston.

Question 24

Icebergs float in the ocean because:

Accepted Answer

Ice is less dense than water, so it displaces a volume of water equal to its weight

Answer

Water molecules push the iceberg down.

Answer

Ice is heavier than water.

Answer

Gravity does not act on ice.

Question 25

Some plankton regulate their buoyancy by producing or absorbing oil droplets. Why does adding oil increase their tendency to float?

Accepted Answer

Oil is less dense than seawater, lowering the organism's average density.

Answer

Oil is denser than seawater.

Answer

Oil repels water, creating lift.

Answer

Oil molecules form bubbles that push upward.

Question 26

A 1.8 kW washing machine is used for 30 minutes every day. If the cost of electricity is Php 0.90 per kilowatt-hour, what is the approximate cost of operating the washing machine for 30 days?

Accepted Answer

Php 24.30

Answer

Php 48.60

Answer

Php 1,458.00

Answer

Php 27.00

Question 27

Why are LED bulbs considered more energy-efficient than incandescent bulbs?

Accepted Answer

They convert a greater portion of electrical energy into light instead of heat.

Answer

They reduce resistance in household wiring.

Answer

They increase household voltage.

Answer

They use more current but produce more heat.

Question 28

If several high-power appliances are connected to one circuit and the breaker trips, this happens because:

Accepted Answer

The circuit draws more current than its safe limit.

Answer

Voltage becomes zero instantly.

Answer

Power is automatically increased.

Answer

Resistance in the wires disappears.

Question 29

According to Ohm's Law, if the resistance in a circuit increases and the voltage stays the same, what happens to the current?

Accepted Answer

The current decreases.

Answer

The current stays the same.

Answer

The current stops completely.

Answer

The current increases.

Question 30

What happens when a wave (such as light) passes from air into water?

Accepted Answer

The wave partially reflects and partially refracts toward the normal.

Answer

The wave stops momentarily before continuing in water.

Answer

The wave increases its frequency as it enters water.

Answer

he wave refracts away from the normal because water is denser.

Question 31

If amplitude of a sound wave doubles, the sound becomes:

Accepted Answer

Louder

Answer

Lower pitch

Answer

Slower

Answer

Higher pitch

Question 32

A lighting designer shines a spotlight from air into a thick glass sculpture. The beam bends as it enters the glass. Which explanation is most accurate?

Accepted Answer

Light slows down in the glass, causing refraction toward the normal.

Answer

Light increases frequency in glass, causing bending.

Answer

Glass reflects part of the beam, forcing it to bend.

Answer

Light amplitude decreases in glass, changing direction.

Question 33

What characteristic defines fluids?

Accepted Answer

Fluids take the shape of their container.

Answer

Fluids cannot exert pressure.

Answer

Fluids have a fixed shape.

Answer

Fluids always have a high density.