Across
- 2. Rate of energy transfer in a circuit. It can be calculated as the product of the current and the potential difference between two points.
- 5. A measure of how difficult it is for charge to travel through a material, depending on the material’s cross sectional area, length and resistance.
- 7. The range of values that could reasonably contain the true value of a measurement, based on the confidence an experimenter has about their result.
- 8. The distance and direction that a vibrating particle or wave has travelled from its equilibrium position.
- 10. The work done moving a unit positive charge from an infinite distance away to that point (2 words)
- 12. The unavoidable resistance any power source will have that makes it harder for current to flow through the source.
- 15. A quantity measuring the internal friction of a fluid, it acts to reduce the flow of a fluid. It is temperature dependent.
- 16. A force acting perpendicular to the flow of air or liquid around an object, typically upwards and against the force of gravity.
- 18. The force that causes flavour change in quarks and leptons, it is responsible for beta decay.
- 19. When the energy in a SHM system is not kept as KE or PE and the total energy is no longer constant.
- 21. The product of a force and the perpendicular distance from the line of action to the pivot about which the force is acting.
- 23. In a transformer these currents act against the magnetic flux that generates a current in the secondary coil making the transformer less efficient and heating the core.
- 24. The point on a stationary wave where the incoming and reflected wave are in phase forming a maximum point.
- 25. The minimum frequency of light needed to cause electrons to be emitted in the photoelectric effect regardless of the intensity.
- 27. A particle consisting of three quarks,
- 29. The change of momentum of an object when a force acts on it. Equal to the area underneath a force-time graph.
- 30. This law says that the direction of an induced current is such that it opposes the current that created it.
- 31. A wave that transfers energy from one point to another.
- 32. A hypothetical gas that has molecules with no interactions and occupy negligible space so it obeys the ideal gas law.
- 33. This person’s law says that as volume decreases the pressure on a gas at a constant temperature increases
- 35. A material that fractures without plastic deformation first.
- 36. A orbit with a time period of one day so will return to the same point in the sky each day.
- 37. When a metal is heated free electrons gain sufficient kinetic energy and are released from the metal’s surface. (2 words)
Down
- 1. When the driving force is at the natural frequency of a system causing maximal energy transfer with the amplitude of oscillation at its maximum.
- 3. Describes the rate of charge or discharge of a capacitor (2 words)
- 4. A material that can withstand large plastic deformation without breaking.
- 6. When the kinetic energy of a system before a collision is equal to the kinetic energy of the system after the collision
- 9. The amount of work done in moving a unit mass from an infinite distance to that point. (2 words)
- 11. The total power radiated by a light emitting source.
- 13. Planes of points where the electric potential is the same, no work is done moving charge along these lines.
- 14. How close a measurement is to its true value, influenced by the systematic and random errors of that measurement.
- 17. When an electron is removed from an atom giving the atom a positive charge.
- 20. This person’s law says that the peak wavelength of emitted radiation is inversely proportional to the absolute temperature of the black body.
- 21. A particle consisting of one quark and one antiquark.
- 22. A force felt towards the centre of an object's orbit due to the centripetal acceleration.
- 26. The energy supplied by a source per unit charge passing through the source, measured in volts.
- 28. How close a set of repeated measurements are to one another but not the true Value
- 34. Materials that change their resistance depending on external conditions.