Revise GCSE Physics


P1a Heating Houses

Heat

  1. Can you explain the difference between an object that is hot and the same object when it was cold - without using the word Temperature?
  2. How do we make an object hotter?
  3. What is Heat?
  4. What units are quantities of Energy measured in?
  5. What do we mean by 'heat flow'?
  6. When will heat flow from one object to another?
  7. In which direction does heat flow, during heat transfer?
  8. What happens when heat flows between two objects?
  9. When does heat flow stop?
  10. What does heating an object mean?
  11. What happens when we heat an object?
  12. What is energy?
  13. What happens to the energy when we heat an object?
  14. What about cooling?
  15. Why does your hand feel colder when you place an ice cube on it?
  16. If we pick up a metal fork and a plastic fork, the metal fork will feel colder than the plastic one . Why?

Temperature

  1. How do we sense (feel) temperature?
  2. Are Temperature and Heat the same thing?
  3. What is Temperature?
  4. What does temperature actually tell us about an object? Why do we care about temperature at all?
  5. What do we mean by the Rate of Heating or the rate of cooling?
  6. What determines the Rate of Heating of an object (the rate at which heat energy flows towards the object)?
  7. What are the values of Room Temperature and Body Temperature?
  8. What units is Temperature measured in?
  9. Are there any important temperatures that I ought to know about?
  10. What units are Heat and other types of energy measured in?
  11. What does the shape of a cooling curve for water tell us about the rate of cooling of water?
  12. How is the highest/fastest rate of warming or cooling shown on a graph/chart?
  13. What happens to a hot object when left in a colder environment?
  14. What happens to the temperature of a cup of hot coffee left out in summer compared to one left out in winter?
  15. What is a Thermogram?
  16. What does the thermogram show us?
  17. What do the different colours on a thermogram represent?
  18. What is a measurement scale?
  19. What measurement scales are used for Heat and Temperature?
  20. What is the main difference between Absolute and Arbitrary Scales?

Specific Heat Capacity and temperature change

  1. How are the two possible outcomes of heating an object described quantitatively (using numbers)?
  2. If we give 1000 Joules of heat energy to different objects, will they all have an equal rise in temperature?
  3. What determines the size of increase of temperature of an object due to heating?
  4. How do we calculate the amount of energy needed to raise the temperature of an object by a certain amount?
  5. Do we use a different equation for an object that is cooling?
  6. How do you calculate the amount of energy lost by an object when its temperature falls?
  7. What does the amount of energy needed to raise an object's temperature depend on?
  8. Where do students usually go wrong with specific heat capacity?
  9. How would you measure the energy required to change the temperature of an object by experiment?
Specific Latent Heat and changes of state

  1. What are the three states of matter?
  2. How do objects change from one state to another?
  3. What is the only possible outcome of heating an object, other than raising the temperature of the object?
  4. What happens to the temperature of an object as it is heated and goes from being a solid to being a liquid and then a gas?
  5. Why does the temperature of a substance not change when it is melting or boiling?
  6. What are the two key things that this Heating graph shows us?
  7. What does the amount of energy needed to melt or boil something depend upon?
  8. What is the equation for the energy required to change a materials state?
  9. Why are there two values for the specific latent heat for each substance?
  10. What do the terms vaporization, fusion and condensation mean?
  11. How is explaining cooling different from heating?
  12. When an object loses energy, because heat flows out of it, what happens to the object?
  13. Are there any other circumstance that would allow an object's temperature not to rise despite it being heated, other than being at the melting or boiling point?