ESSENTIAL TERMS - PHYSICS IN DAILY LIFE & MOTION (VOCABULARY)

Vocabulary flashcards covering essential physics terms from daily-life concepts, translational and rotational motion, fluid principles, electrical safety, energy efficiency, sound, and light technology.

Physics

The study of matter, energy, motion, and forces, and how they interact in the physical world.

Energy

The ability to do work; exists in forms such as kinetic, potential, and thermal energy.

Force

A push or pull that can change an object's motion.

Friction

A force that resists motion between two surfaces in contact.

Gravity

A force of attraction between objects with mass; causes objects to fall toward Earth.

Airbags & Seatbelts

Safety devices in vehicles that absorb impact to prevent injuries during accidents.

Vacuum Cleaner

Household appliance that uses suction to clean surfaces.

Productivity in the Workplace

Designing better tools and machines to increase efficiency and output.

Virtual Reality (VR) Games

Computer-generated interactive environments for leisure and entertainment.

Linear Velocity

The speed of an object moving along a straight path.

Translational Motion

Movement from one point to another (straight or curved path).

Rotational Motion

Spinning around an axis or center point.

Combination Motion

Motion that has both translation and rotation at the same time.

Angular Velocity

The rate at which an object rotates around an axis.

Pascal's Principle

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

Hydraulic Car Lift

A machine that uses Pascal's Principle to lift heavy vehicles with small force.

Hydraulic Jack

Uses fluid pressure to lift heavy loads.

Buoyant Force

Upward force exerted by fluid that opposes the object's weight.

Floating Condition

An object floats if it displaces water equal to or greater than its weight.

Archimedes' Principle

Buoyant force equals the weight of the displaced fluid.

Buoyancy Test Material

Aluminum foil is used to test how shape affects floating.

Changing One Variable

Isolating the effect of one factor in an experiment to ensure valid results.

Boat Shape Test

Experiment comparing wide flat vs tall narrow shapes to test buoyancy.

Buoyancy Measurement

Assessing how deep an object sinks or how much stays above water.

Damaged Insulation Hazard

Hazard from damaged insulation that can cause electric shocks or fire.

Exposed Wires

Wires that are not insulated, increasing risk of electric shock.

Wet Area Electrical Danger

Water increases the risk of electric shock in areas with electricity.

Faulty Wiring Sign

Frequent breaker trips or flickering lights indicate wiring problems.

Standby Power

Devices still draw electricity when off but plugged in.

Thermal Insulation (Buildings)

Material that prevents heat loss or gain, reducing energy use.

Automated Lights/Fans

Motion sensors turn devices off when not needed.

Energy-Saving Practices

Measures to reduce energy use in daily life and systems.

Vibration

Rapid back-and-forth movement that produces sound.

Ultrasound Imaging

Uses high-frequency sound waves to create images of internal organs.

SONAR

Sound Navigation and Ranging; detects objects underwater using echoes.

Fiber Optics

Sends light signals through thin fibers for fast communication.

Wavelength

Determines the color of light.

LED Efficiency

Converts most electrical energy into visible light.

Hologram

3D image created using coherent and interfering light waves.

Laser Surgery

Uses focused, coherent light for precise cutting and control.

Lubrication

Reduces friction in moving parts, improving machine efficiency.