General Science 11 Term 1 Examination Reviewer Flashcards

Fill-in-the-blank practice flashcards derived from the General Science 11 Term 1 Examination Reviewer covering motion, machines, fluid principles, sound, light, microbiology, food processing, and Philippine government agencies.

Translational motion occurs when an object moves from one __________ to another.

place

Rotational motion occurs when an object spins around an __________ or center point.

axis

A simple machine is a mechanical device that can change the size or direction of an __________ force.

applied

A lever is a rigid bar that rotates around a fixed point or __________.

fulcrum

A pulley consists of a wheel with a groove that works with a rope or __________.

cable

A screw is an __________ plane wrapped around a cylinder.

inclined

A __________ machine combines two or more simple machines.

compound

Pascal's Principle concerns pressure applied to an __________ fluid.

enclosed

An object placed in a fluid experiences an upward buoyant force related to the fluid displaced according to __________ Principle.

Archimedes'

The Doppler effect involves an apparent change in the observed __________ of a wave because of relative motion between the source and observer.

frequency

Lightning is seen before thunder is heard because __________ travels much faster than sound.

light

An echo results when sound waves __________ from a surface and return to the listener.

reflect

__________ is the quality or character of a sound that allows us to distinguish between different sound sources.

Timbre

Refraction is the __________ of light when it passes from one medium to another.

bending

White light can be separated into different colors in a process called __________ because different wavelengths bend by different amounts.

dispersion

Security cameras operating in very dark conditions detect __________ light, which is part of the electromagnetic spectrum that humans cannot see.

infrared

Noise-canceling headphones reduce background noise using the principle of __________ interference.

destructive

Louis Pasteur developed an early successful rabies vaccination approach in the decade of the $\text{1880s}$.

$$\text{1880s}$$

Germ theory emphasizes the role of __________ in causing disease, replacing older explanations involving spontaneous generation.

microorganisms

A __________ is designed to stimulate the body's defenses against a particular disease-causing agent.

vaccine

__________ refers to the state or process of becoming protected against a disease.

Immunization

Pasteurization is a controlled __________ process used to reduce harmful microorganisms in products like milk and juices.

heat-treatment

In food processing, __________ is the process in which a gas changes into a liquid.

condensation

__________ is a separation process that uses differences in boiling points and involves vaporization and condensation.

Distillation

In the Philippines, the government agency focusing on scientific research, technological innovation, and research support is __________.

DOST

In the Philippines, the government agency focusing on businesses, trade, consumer rights, and entrepreneurship is __________.

DTI