Machines
- A machine is a device that makes work easier either by:
- Reducing the effort (force) required to lift the load or
- By changing the direction in which the effort is […]
Quick NetOne, Econet, And Telecel Airtime Recharge
ZIMSEC O Level Combined Science Notes: Machines:Levers
Quick NetOne, Econet, And Telecel Airtime Recharge
Aim: To show that mechanical advantage depends on lever position
Materials: 1m rectangular poplar wood pieces, string, measuring tape, weights, clamp
Method
ZIMSEC O Level Combined Science Notes: Machines: The inclined plane
ZIMSEC O Level Combined Science Notes: Experiment:Finding the mechanical advantage of an inclined plane
Aim: Finding the Mechanical Advantage of an inclined plane
Materials: 1m long plank, sandpaper, bricks. cotton reel, nails, thick steel wire, wood block (smoothed on the underside) weights/tin and sand, pliers, string, spring balance/scales
Aim: To use pulleys to lift loads
Materials: 4 single pulleys, string, 1kg mass/a tin filled with sand, spring balance, clamp stand, meter rule
Method
[…]