AQA - Biology - Reaction Time required practical

Stopwatch

Ruler

Thermometer

Balance scale

$$\frac{\text{Sum of all reaction times}}{\text{Number of measurements}}$$

$$\text{Sum of all reaction times} \times \text{Number of measurements}$$

$$\text{Sum of all reaction times} - \text{Number of measurements}$$

$$\frac{\text{Number of measurements}}{\text{Sum of all reaction times}}$$

Age

Caffeine intake

Fatigue

All of the above

Ensure the ruler is clean

Make sure the ruler is dropped from a consistent height

Ensure the participant is seated comfortably

Wear safety goggles

Use a digital stopwatch

Repeat the experiment multiple times and calculate the average

Conduct the experiment in a noisy environment

Use different equipment each time

Seconds

Metres

Kilograms

Ounces

Slower response

Faster response

Inaccurate measurement

None of the above

Ruler

Stopwatch

Thermometer

Computer software