Repetition

Daniel and Alex are both scientists. Daniel conducts an experiment testing different fuel sources for cars in the future. Daniel conducts each test three times in order to compare his data. After he finishes the trials, Daniel showed Alex his results from each trial. Alex is confused about Daniel’s results, so he decides to conduct the experiment for himself. Which scientific process did each scientist use?

• Alex and Daniel used each others data to compare their results.

• Alex and Daniel used the same hypothesis to compare their results.

• Daniel used repetition in his experiment while Alex replicated Daniel's experiment

• Daniel used replication in his experiment while Alex used repetition to conduct Daniel's experiment.

When you do many trails during an experiment then it is called

• Variables

• Test

• Repetition

Tags

NGSS.MS-PS3-4

For every experiments how many trails or repetitions usually scientist /we should do

• 3 to 5

• no trials required

• 1 trial

Tags

NGSS.MS-PS2-2

More trails or repetitions of an experiment will make the results or conclusions more .........................

• Accurate

• False

• Experimental

Tags

NGSS.MS-PS2-5

Reggie and Marissa decide to measure the number of stairs a spring toy can travel down. Reggie tries first. Before he tells Marissa what he measured, however, he tries the experiment three different times. When Marissa asks about the result, he tells her the average of his three trials, and the range of his results, from the lowest to the highest value. What would be the most likely scientific reason for Reggie to repeat the experiment so many times?

• He needed to obtain identical results.

• He needed to obtain the result he expected.

• He needed to see how consistent or inconsistent his results were.

• He needed to see how the fundamental principle he was studying changed.

Post Malone has taught his pet rat to run a maze. He thinks that the rat will go faster if he puts its favorite treat at the end. He has the rat run the maze ten times with the favorite treat and ten times with a regular food pellet. He uses a stopwatch to measure how long it takes for the rat to get to the reward. This is an example of what?

• repetition

• replication

• Post's face tattoos

Ms. Hayward conducts a study to see which period students are most late to. She does this for five days. This is an example of...

• repetition

• replication

• torturing students

In a scientific experiment, why is it important to repeat trials multiple times?

• To ensure the results are consistent and reliable

• To make the experiment more complex

• To confuse the participants

• To reduce the cost of the experiment

Tags

NGSS.MS-PS1-2

Which of the following best describes the term 'repetition' in a scientific context?

• Repeating the same experiment to verify results

• Using different methods to achieve the same result

• Changing variables to see different outcomes

• Recording data in a different format

A scientist conducts an experiment to test the effect of sunlight on plant growth. She repeats the experiment three times. What is the primary reason for this repetition?

• To increase the sample size

• To ensure the results are not due to random chance

• To use more resources

• To make the experiment more interesting