Product (Physics)


 

A mini nursery

 

Night and Day

 

Weather observation with the Cobra4 Mobile-Link

 

Mirror your tongue

 

Teamwork

 

A matter of taste

 

Very close

 

Feeling fine

 

Hot or cold

 

Sound waves

 

Music

 

Orientation

 

A look at your eye

 

Near and far

 

The upside down candle

 

Blind spot

 

Two eyes see more than one

 

A useful trick

 

Temperature sensitivity of the skin

 

Spreading of smells

 

Tactile sensitivity

 

Vibrations in the air

 

Lens shapes

 

A look at shapes and colours

 

Measurement of respiratory volume

 

Calibration of a thermometer

 

Temperature measurement

 

Temperature of mixture

 

Wool as thermal insulator

 

Air (feathers) as thermal insulator

 

Thermal insulation

 

Heat of evaporation of water

 

Heat of evaporation of spirit

 

Lowering of the melting point with salt

 

Ice floats

 

One magnet, five metals

 

The divided magnet

 

Absorption of thermal radiation (light)

 

Thermal convection in water

 

Thermal conduction in glass and metal

 

Thermal conduction in water

 

Production of gypsum plaster

 

Processing of gypsum

 

Plaster moulds

 

The sinking of a paper clip

 

The soap boat

 

We study a flower

 

Calibration of a force measuring instrument

 

The two-sided lever

 

Save energy, use pulleys

 

Merely dirty

 

Soil aeration

 

A quick run trough

 

Underfoot forces

 

The magic wand

 

A balloon in a flask

 

The postcard trick

 

Hot and cold air

 

Fresh and spent air

 

The thirsty candle

 

Water and ice

 

Sweet and salty solutions

 

An egg in water

 

A refrigerator in a bottle

 

Colder than ice

 

Soft and hard water

 

Soap suds

 

Water and oil - separate and together

 

A wall of water

 

A drop of water

 

Clean water

 

Thermal expansion of air and water

 

Thermal expansion of water and methylated spirit

 

States of aggregation of water

 

River bank filtration

 

Ice floats ? Maximum density of water is 4 °C

 

Water content of natural substances

 

Dissolved components in different waters

 

Solutions, colloids, suspensions

 

Hardness of water

 

Test for water

 

Is air nothing?

 

Air pollution

 

Measurement of length

 

Measurement of time

 

Determination of the mass of solid and liquid bodies

 

Determination of the volume of regular and irregular bodies

 

Determination of the density of solid bodies

 

Determination of the density of liquids

 

Forces during the expansion of solid bodies

 

Volume expansion of solid bodies

 

Determination of the volume of liquids and solids

 

Determination of the volume of gases

 

Determination of the density of solid bodes with equal massand different volume

 

Examination of soil horizons

 

Measurement of forces

 

Force and reaction

 

Weight

 

Weight

 

Hooke's law

 

Bending of a leaf spring

 

Bending of a leaf spring

 

Calibration of a dynamometer

 

Force aligned in the same and opposite direction

 

Combination of forces; parallelogram of forces

 

Force on a pulley mounting

 

Finding the center of gravity

 

Stability

 

Reaction forces for an unloaded beam

 

Reaction forces for a loaded beam

 

Restoring force on a displaced pendulum

 

Friction

 

Rolling friction

 

Friction

 

Types of friction

 

Coefficient of friction

 

Beam balance

 

Double-sided lever

 

One-sided lever

 

Force and displacement on a fixed pulley

 

Force and displacement on a free pulley

 

Block and tackle formed from a free and a fixed pulley

 

Block and tackle with four pulleys

 

Force and displacement on a step wheel

 

Gear mechanisms and belt drives

 

Mass and weight

 

Extension of a rubber band and helical spring

 

Hooke's law

 

Making and calibrating a dynamometer

 

Bending of a leaf spring

 

Force and counterforce

 

Composition of forces having the same line of application

 

Composition of non-parallel forces

 

Resolution of a force into two non-parallel forces

 

Resolution of forces on an inclined plane

 

Resolution of forces on a crane

 

Restoring force on a displaced pendulum

 

Determination of the centre of gravity of an irregular plate

 

Frictional force

 

Determination of the coefficient of friction of an inclinedplane

 

Double-sided lever

 

One-sided lever

 

Double-sided lever and more than two forces

 

Reaction forces

 

Torque

 

Beam balance

 

Sliding weight balance

 

Fixed pulley

 

Free pulley

 

Block and tackle

 

Wheel and axle

 

Toothed gearing

 

Belt drive

 

Dynamic friction

 

Sliding friction as a function of the weight and area of bearing

 

Burning iron

 

Short-circuit

 

Linear uniform motion with the demonstration track and the timer 4-4

 

Free fall

 

Power

 

Potential energy and tension energy

 

Conversion of mechanical energy into internal energy

 

Conversion of mechanical energy into internal energy

 

Light and shadows

 

Silhouettes

 

Mirror images of the shadow

 

Playing wih mirrors

 

Playing with a spoon

 

The lost coin

 

A lens made of water

 

The book of mirrors

 

The bent mirror

 

The look into infinity

 

The labyrinth of light

 

The rainbow CD

 

What a lens can do

 

Propagation of sound in air

 

Propagation of sound in solid bodies

 

Propagation of sound in water

 

Noise level traffic lights

 

Lower and upper hearing threshold

 

Directional hearing

 

Bone conduction

 

Measurement of sound velocity

 

Reflection and absorption of sound

 

Uniform linear motion with the 2-1 timer

 

Comparison of uniform and non-uniform motion with the 2-1timer

 

Instantaneous and average speed with the 2-1 timer

 

Laws of uniform linear motion with the 2-1 timer

 

Laws of uniformly acceleration motion with the 2-1 timer

 

Velocity-independent and velocity-dependent friction with Demo-Track and Timer 4-4

 

Uniformly accelerated motion with an accelerating mass withthe demonstration track and the timer 4-4

 

Uniformly accelerated motion with an inclined track with thedemonstration track and the timer 4-4

 

Uniformly decelerated motion with the demonstration trackand the timer 4-4

 

Horizontal and oblique projectile motion

 

Zero gravity during free fall

 

Chromoplasts

 

Brine shrimp (Artemia salina)

 

Visualization of the vibrations of a tuning fork

 

Sound as a sine wave

 

Beat frequency

 

Fundamental, overtone and tone colour

 

Joined vessels

 

Hydrostatic pressure

 

Hydrostatic pressure with Cobra4

 

Buoyancy and floating

 

Archimedes' principle

 

Finding the density of solid bodies by measuring the buoyan-cy

 

Finding the density of liquids using a densimeter

 

Finding the density of immiscible liquids

 

Capillary action

 

Capillary action (with support material)

 

U-tube manometer

 

Hydrostatic pressure

 

Communicating vessel

 

Hydraulic press

 

Artesian well

 

Archimedes' principle

 

Density determination by measuring buoyancy

 

Discharge velocity of a vessel

 

Pressure in flowing fluids

 

Hydrostatic pressure measurement

 

Measurement of the hydrostatic pressure with a pressure element

 

Swimming, floating, sinking

 

Generation of sound waves