Reaction time Reaction time


Reaction times vary from person to person. Typical values range from 0.2 s to 0.9 s.

A driver’s reaction time can be affected by tiredness, drugs and alcohol. Distractions may also affect a driver’s ability to react.

Students should be able to:

  • explain methods used to measure human reaction times and recall typical results
  • interpret and evaluate measurements from simple methods to measure the different reaction times of students
  • evaluate the effect of various factors on thinking distance based on given data.

WS 1.5 -Evaluate risks both in practical science and the wider societal context, including perception of risk in relation to data and consequences.

WS 2.2 Plan experiments or devise procedures to make observations, produce or characterise a substance, test hypotheses, check data or explore phenomena.

WS 3.5 Interpreting observations and other data (presented in verbal, diagrammatic, graphical, symbolic or numerical form), including identifying patterns and trends, making inferences and drawing conclusions.

WS 3.7 Being objective, evaluating data in terms

of accuracy, precision, repeatability and reproducibility and identifying potential sources of random and systematic error.

MS 1a Recognise and use expressions in decimal form

MS 3c Substitute numerical values into algebraic equations using appropriate units for physical quantities

AT 1 :Use of appropriate apparatus to make and record a range of measurements accurately, including length, area, mass, time, volume and temperature. Use of such measurements to determine densities of solid and liquid objects (links to A-level AT a and b).







Asthma attack risk for selected student?