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Section 1

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (82)

Section 1

(50 cards)

Force =

Front

Mass x Acceleration

Back

Parallel Circuit

Front

Current = Current of all components Voltage the same

Back

Transverse Wave Diagram

Front

Back

Pressure Difference =

Front

Height x Density x Gravity

Back

Longitudinal Wave Diagram

Front

Back

Artificial Earth Satellites

Front

Have orbital period of 1 day = geostationary satellites, used for communications

Back

Series Circuit

Front

Current the same Voltage = Voltage of all components

Back

Moment =

Front

Force x Perpendicular Distance from Pivot

Back

Average Speed =

Front

distance / time

Back

Resistance

Front

Something which slows down the flow

Back

Work Done =

Front

Force x Distance Moved

Back

Types of orbit

Front

Moons and planets have slightly elliptical orbits Comets orbit the sun, they have very elliptical orbits

Back

Refractive Index =

Front

Sin (I) / Sin (R)

Back

Sin (Critical angle) =

Front

1 / Refractive Index

Back

Electrical Power =

Front

current x voltage

Back

Distance Time Graphs

Front

Back

Acceleration =

Front

Change in Velocity / Time Taken

Back

GPE Potential Energy =

Front

Mass x Gravity x Height

Back

Circuit Rules

Front

Increase voltage = more current will flow Increase resistance = less current will flow

Back

Light Dependent Resistor (LDR) Diagram

Front

Back

Examples of Transverse Waves

Front

Electromagnetic Waves Ripple in Water

Back

Velocity Time Graphs

Front

Back

Energy Transfer =

Front

Work Done

Back

Solar Systems

Front

Galaxy = large collection of stars Sun = one of many stars

Back

LDR Explanation

Front

Changes it resistance depending on the amount of light In bright light the resistance decreases In dark light the resistance increases Acts as a light sensor

Back

Gravity

Front

Force of attraction between all masses

Back

Examples of Longitudinal Waves

Front

Sound + Ultrasound Shock Waves

Back

Density =

Front

Mass / Volume

Back

Efficiency =

Front

Useful Energy Output / Total Energy Input

Back

Current

Front

Rate of flow of Charge

Back

Voltage

Front

Driving force which pushes current (Electrical Power)

Back

Electric Circuit Symbols

Front

Back

Effects of gravity on planets

Front

Closer you get to a star or a planet the stronger the force of attraction is, so they move quicker in orbit

Back

Hookes Law

Front

Extension is directly proportional to force until the spring reaches it's elastic limit

Back

Pressure =

Front

Force / Area

Back

Filament Lamp

Front

Back

Diodes

Front

Back

Transverse Wave

Front

Vibrations are at 90° to the direction energy is transferred

Back

Safety features of Plugs

Front

Back

Weight =

Front

Mass x Gravity

Back

Wave Info

Front

All waves transfer energy and information without transferring matter

Back

Thermistor Explanation

Front

Changes in resistance as temperature changes In hot condition the resistance decreases In cool conditions the resistance increases Acts as temperature detectors

Back

Kinetic Energy =

Front

1/2 x Mass x V^2

Back

Wave Speed =

Front

Frequency x Wavelength

Back

Wire

Front

Back

Charge =

Front

current x time

Back

Thermistor Diagram

Front

Back

Voltage =

Front

current x resistance

Back

Resistors

Front

Back

Longitudinal Waves

Front

Vibrations are parallel to the direction the wave transfers energy

Back

Section 2

(32 cards)

Dangers of Microwaves

Front

Yeah human body tissue internally

Back

Resistance of LDRs and Thermistors Experiments

Front

Measure current at any know/fixed temp Measure voltage at any known/fixed temp Vary temp and take new readings Calculate and draw voltage - current graph Repete and average

Back

Conduction

Front

Process where vibrating particles pass on their kinetic energy

Back

Uses of Waves

Front

Radio Waves: Communication Microwaves: Satellite Communication Infra-Red Radiation: Heating and monitor temperature Visible Light: Travel though optical fibres + Photography Ultraviolet Light: Fluorescent Lamps X-Rays: See inside things Gamma Rays: Sterilising medical equipment

Back

Brownian Motion

Front

Small particles have a constant, rapid and random movement - small particles can move larger particles - causes pressure This discovery was proved with the use of pollen grains

Back

Absolute 0 - Kelvin Scale

Front

Absolute 0 - atoms have as little kinetic energy as possible Absolute 0 = -273°C 50 Kelvin = -223°C 15°C = 288 Kelvin

Back

Refraction of light experiment

Front

Place block on sheet of paper Draw around the block Turn ray box on and shine beam of light into block use pencil to mark path of light into and out of block Remove the block, measure the angle of refraction Repeat

Back

Dangers of Gamma

Front

Cell mutation and Tissue damage - can cause cancer

Back

Loudspeaker

Front

A.C electrical signals - from amplifier - to coil of wire - wrapped around cone Cone surrounded - permanent magnet - cause a force forwards + backwards Movements = cone vibrate = sound

Back

Total internal reflection - Optical fibres

Front

Angle of Incident is always higher than critical angle, light always totally internally reflected - only stops if fibre is to sharp

Back

Light Refraction

Front

Back

Measuring speed of sound

Front

Person at one end with a pistol Other person at a distance a way from the pistol (e.g 500 metres) Person fires gun People with stopwatches start time when see the smoke from gun and stop when they hear the bang Average the time

Back

Dangers of Ultraviolet

Front

Damage surface cells and causes blindness

Back

Marsden experiment Diagram

Front

Back

Angle of Incidence is equal to critical angle

Front

Back

Virtual Image

Front

Back

Conclusion of Marsdens experiment

Front

Most of atom is empty space Nucleus is small Nucleus is dense Nucleus is positive

Back

Sankey Diagram

Front

Back

Investigating the magnetic field experiment

Front

Place sheet of paper on wooded bench (avoid interaction with other magnets) Place magnet on sheet of paper Place plotting compass against the magnet Mark position of compass needle on the paper with a dot Move plotting compass so that the tail of the arrow sits where the tip of the arrow was Repeat process Join dots

Back

Uniform Magnetic Field

Front

Back

Convection

Front

Particles from their hotter region to the cooler region and take their heat energy with them

Back

Power

Front

One Watt = 1 joule of energy transferred per second

Back

How temperature effects Gas experiment

Front

Use water bath to vary the temperature Calculate the volume of air in test tube before heating Measure volume of air after heating Use a narrow glass tube with liquid above the air so you can clearly see how it has expanded

Back

Renewable Energy

Front

Wind Farms Geothermal Energy Solar Energy Hydroelectric Power

Back

Angle of Incidence is less than critical angle

Front

Back

Human Hearing Range

Front

20 - 20,000 Hz

Back

Electromagnetic Waves

Front

Waves have different wavelengths - continuous spectrum All transverse - Travel at same speed through a vacuum

Back

Dangers of Infra-Red

Front

Skin Burns - Heating effect

Back

Marsden experiment

Front

Alpha particles were detected as tiny flashes of light on screen Most alpha particles went straight thought gold foil A small number deviated as they were repelled Very few alpha particles bounced back because of the dense nucleus

Back

Diagram of Electromagnetic Waves

Front

Back

Flemmings Left hand rule

Front

Back

Angle of Incidence is more than critical angle

Front

Back