Reaction Time Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is reaction time in biology?

Reaction time is the time between a stimulus and your response to it.

What is a stimulus in a reaction time test?

It is a change you notice, such as a light turning on or a ruler starting to fall.

In which unit is reaction time usually measured?

Reaction time is usually measured in seconds (s) or milliseconds (ms).

Describe one everyday example that shows reaction time.

When a traffic light turns green (stimulus) and you move your foot to the pedal (response).

How can you measure reaction time using a falling ruler?

A partner holds a ruler at the zero mark above your thumb and finger, drops it without warning, you catch it, then read how far it fell to find your reaction time.

In a ruler drop reaction time experiment, what is the dependent variable?

The dependent variable is the distance the ruler falls, or the reaction time.

Name two factors that can make reaction time slower.

Tiredness and drinking alcohol can both slow reaction time.

Name one factor that can make reaction time faster.

Practice or taking caffeine can make reaction time faster.

Why should you keep the same hand and starting position in a reaction time test?

To make it a fair test, so only the factor you change affects reaction time.

How can you make your reaction time results more reliable?

Repeat the test several times and calculate the mean, or average, reaction time.

Why is a short reaction time important when driving a car?

A short reaction time helps you brake or steer quickly to avoid dangers and stay safe.