Unit 30  Physical Properties
Learning Outcomes:
 Be able to measure length, mass, time and temperature, and perform simple calculations based on these to find the derived quantities: area, volume, density, speed, velocity, and acceleration; understand that units of measurement follow the SI system (OP1)
 Measure mass and volume of a variety of solids and liquids and hence determine their densities (OP2)
 Investigate flotation for a variety of solids and liquids in water and other liquids, and relate the results of this investigation to their densities (OP3)
 Understand the concept of force, recall that the newton is the unit of force, and describe forces and their effects (OP4)
 Understand that weight is the force of gravity and that weight varies with location; recall that mass in kilograms multiplied by 10 is approximately equal to weight in Newtons on the surface of the earth (OP7)
 Find the centre of gravity of a thin lamina; investigate the role of centre of gravity in design for stability and equilibrium (OP8)
 Investigate the law of the lever; recall two everyday applications of levers (OP9)
 Understand the relationship between pressure, force and area; perform simple calculations using this relationship (OP10)
 Investigate the relationship between pressure and depth for a liquid (OP11)
 Understand that the atmosphere exerts pressure and that atmospheric pressure varies with height (OP13)
 Examine weather charts to observe variations in atmospheric pressure and relate these to weather conditions (OP14)
 Define and give the units for work, energy and power, state the relationship between work and power, and perform simple calculations based on this relationship (OP15)
 Investigate the effect of pressure on the boiling point of water (OP26)
Probably the best cover ever  It's quite literally 'out of this World'
Thank you Commander Chis Hadfield
Weight and MassValdo to the rescue again (worth watching)
Constant mass but changing weightValdo in a lift (more complicated than you need but still worth watching)
Tank versus ballerinaAnother example of pressure
Levers and the Law of LeversWhere is the fulcrum on the hammer ???
DensityWhy some things float and others sink
Water Pressure and Freediving!NEVER try this on your own
Boiling Point and PressureHow to get water to boil below 100 degrees Celsius
Water Pressure PracticalWhat we did in class
Work, Energy and Power INASA explains
Law of Moments simulationAlso affectionately called the Law of the Lever

Bed of Nails  PressureLook carefully at the nail pattern when the board is lifted off!
Bed of Nails againPressure, force and area
PressureA final example of pressure
Levers in actionHow to use a lever to move objects
Why do things float?Does she mention density at all ?
Crushing cans on a larger scale!Drink cans are more fun though !
Fronts and Air pressureExplaining Weather
Warm Air meets ColdFronts in action
Work, Energy and Power IIIgnore Horsepower !
Weightlessness and GravityThis looks fun !

Buoyancy simulation
Hours of fun to be had in the Buoyancy Playground