Battery Experiment: Which Battery Lasts the Longest?

What are the variables and controls in Anna's battery experiment?

a. What is the independent variable (IV)?

b. What is the dependent variable (DV)?

c. What is the control?

d. What are the constants?

Answers:

a. The independent variable is the type of battery used.

b. The dependent variable is the time the clock stopped.

c. The control is a neutral battery.

d. The constants include the type of clock used and other factors kept consistent throughout the experiment.

In Anna's battery experiment, she wanted to determine which battery lasted the longest. She used four different types of batteries: Duracell, Energizer, Kroger brand, and Eveready. The independent variable in her experiment was the type of battery used, as this is the factor she manipulated to observe its effect on the dependent variable.

The dependent variable in the experiment was the time the clock stopped, which was recorded for each battery trial. By measuring the time the clock stopped, Anna could determine which battery had a longer-lasting performance.

The control in the experiment was a neutral battery, which was not manipulated or changed. This neutral battery served as a baseline for comparison to evaluate the performance of the other batteries.

Throughout the experiment, Anna kept certain factors constant to ensure the reliability of her results. These constants included the type of clock used, the location and temperature of the experiment, the method of recording the time the clock stopped, and any other potential influencing factors that were held consistent.