Experimental Data Analysis and Interpretation

Mrs. Strick Uzi and Mrs. Parati guide students through a lab on velocity. Students are tasked with setting up a control and experimental group to make a tennis ball fall half as quickly as the control. The tutorial covers setting up the experiment, collecting and analyzing data, understanding central tendency measures, and graphing results. Students are encouraged to form hypotheses and test them, with a focus on accuracy and neatness in data presentation.

What is the primary objective of the velocity lab?

• To change the color of the tennis ball.

• To make the tennis ball bounce higher.

• To make the tennis ball fall half as quickly.

• To make the tennis ball fall twice as quickly.

What equipment is used to keep the tennis ball in line with the motion detector?

• A measuring tape

• A ruler

• A string

• Hot Wheels tracks

How many samples per second are collected during the experiment?

• Four samples per second

• Three samples per second

• Two samples per second

• One sample per second

What should be done if the data collected is inconsistent?

• Call the teacher for assistance

• Ignore the data

• Start a new experiment

• Change the motion detector

Which measure of central tendency was found to be more representative of the data?

• Mean

• Median

• Range

• Mode

What is the purpose of identifying outliers in the data?

• To ignore them completely

• To understand data trends better

• To include them in the average

• To make the data more complex

What should the title of the graph include?

• The names of the students

• The date of the experiment

• The name of the experiment

• The effects of the independent variable on the dependent variable

What is the correct method to find the maximum velocity on the graph?

• Look for the lowest point on the graph

• Look for the first peak on the graph

• Look for the last peak on the graph

• Look for the average point on the graph

Why is it important to have a hypothesis for the experiment?

• To avoid using a control group

• To make the data collection easier

• To guide the experimental changes

• To ensure the experiment is fun

What is the expected outcome for the experimental group's data compared to the control group?

• The data should be twice as large

• The data should be half as large

• The data should be the same

• The data should be random