Keep notes

• Ohm's law


  Voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant
• Hooke's law


  The extension of a spring is directly proportional to the force causing the extension, more force applied the greater the extension of the spring
• Law of conservation of energy


  Energy can't be created or destroyed, only converted from one form to another
• Displacement


  The change in position of an object or person, measured in meters
• Velocity


  The rate at which displacement is changing. It's how fast you're moving and in what direction
• Density


  The mass of 1 cm³ of material. Density will vary depending on the mass of the material used. Less dense substances float on more dense substances
• Objects less dense than water will float, objects more dense than water will sink
• hocks law