Physics in Daily Life & Motion — Review Flashcards

A comprehensive set of practice flashcards covering daily-life physics, translational vs rotational motion, machines and efficiency, hydraulics, Archimedes’ Principle, Pascal’s Principle, electrical safety, and energy conservation.

What are the four broad areas where physics appears in daily life as listed in the notes?

Household; Health & Safety; Productivity; Leisure.

Under 'Household' in Physics in Daily Life, what topics are mentioned?

Electricity, appliances, water system.

Under 'Health & Safety', what topics are listed?

Helmets, airbags, X-rays, MRI.

Under 'Productivity', what topics are listed?

Machines, tools, automation.

Under 'Leisure', what topics are listed?

Sports, music systems, transportation.

What is translational motion?

Motion in a straight line.

What quantities describe translational motion?

Displacement (m), velocity (m/s), acceleration (m/s²).

What is rotational motion?

Motion around an axis.

What quantities describe rotational motion?

Angular displacement (rad), angular velocity (rad/s), angular acceleration (rad/s²).

What is the relation between linear speed v and angular speed ω?

v = rω (linear speed = radius × angular speed).

Provide a translational motion example in human movement.

Walking.

Provide a rotational motion example in human movement.

Arm swinging or dancing.

Give an ergonomic design example related to motion.

Chairs designed for comfort to reduce strain.

Which vehicle component shows rotational to translational motion?

Car wheels.

Name four simple machines.

Lever, pulley, inclined plane, wheel and axle.

Name two complex machines mentioned.

Bicycle, crane (and car is also listed in notes).

What is the formula for efficiency?

Efficiency = (Work Output ÷ Work Input) × 100%.

What does high efficiency indicate?

Less wasted energy due to friction and heat.

State Pascal’s Principle.

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

Name common applications of Pascal’s Principle.

Hydraulic brakes, hydraulic lifts, car jacks, syringes.

What electrical safety practices are important?

Do not overload outlets; avoid wet electrical conditions; replace damaged wires; use safety devices.

What safety devices protect electrical systems?

Fuse, circuit breaker, and grounding.

Energy conservation practices at home.

Turn off unused lights/appliances; use LED bulbs.

Energy conservation practices in school.

Turn off fans and projectors; maximize daylight.

Energy conservation practices in businesses.

Use efficient machines; repair leaks.

Energy conservation practices in the community.

Renewable energy, carpooling, energy-efficient buildings.

State Archimedes’ Principle.

Buoyant force = weight of fluid displaced.

Applications of Archimedes’ Principle.

Boats floating, hydrometer, hot-air balloon.

Floating factors according to Archimedes’ Principle.

Shape, mass, and volume affect floating.

Which object tends to float with larger volume?

Objects with larger volume (e.g., ships) tend to float; small-volume objects (e.g., stones) sink.