Reaction Time- B

Question 1

What is the method for reaction time?

Answer 1

-One person sits with their arm resting on a table
-Another person holds a ruler vertically above their hand, at the 0 cm mark
-The ruler is released without warning
-The person tries to catch the ruler as quickly as possible
-Record the measurement on the ruler where it is caught
-Repeat and calculate an average

Question 2

Independent variable?

Answer 2

There is none.

Question 3

Dependent variable?

Answer 3

Distance the ruler falls before being caught

Question 4

Control variable?

Answer 4

The hand used by the participant

Question 5

Possible errors?

Answer 5

The person releasing the ruler may give an unintentional warning signal

Question 6

One way to reduce errors?

Answer 6

Use a computer based reaction time test

Question 7

What should you record in the reaction time practical?

Answer 7

The measurement (cm) where the ruler was caught each time