Required Practical- Mesuring Reaction Time (ruler Catch) Flashcards
1
Q
What are the steps for the practical ?
A
- Lay weaker forearm flat on table
- Partner hold meter stick above index and thumb at 0cm
- Partner drops meter stick without notice
- student catches the ruler and the distance is is caught at is recorded in CM
- the investigation is repeated 5 times
2
Q
How can the reliability of the results be improved ?
A
Repeating it
3
Q
How can the accuracy of the results be improved ?
A
Action/ change method—- measure in mm not CM
4
Q
What is the independent variable ?
A
Distance caught/ reaction speed
5
Q
What is the dependent variable ?
A
Ruler drop
6
Q
What are the control variable(a)
A
Person dropping and catching, ruler, held at same height
