P5: Quiz 19
1)
a) What is the typical range of reaction times for individuals?
b) Give 2 factors that affect the reaction times of individuals.
2) One way that we can investigate reaction times is to use the ruler dropping experiment. Discuss how the ruler dropping experiment works.
You do not need to go into detail about the calculations that are used to calculate reaction times in the ruler dropping experiment.
3) Some students complete the ruler dropping experiment. A student catches the ruler after it has dropped by 39 cm. For both of the questions below, use acceleration due to gravity as 9.8 m/s2.
a) Calculate the final velocity of the ruler. Give your answer to 2 significant figures.
b) Calculate the reaction time. Give your answer to 2 significant figures.
4) Some students complete the ruler dropping experiment. A student catches the ruler after it has dropped by 52 cm. Calculate the reaction time. Give your answer to 2 significant figures. Use acceleration due to gravity as 9.8 m/s2.
5)
a) Give an alternative experiment to the ruler dropping experiment that we can use to measure reaction time.
b) Discuss the benefits of using this experiment compared to the ruler dropping experiment.