Question

Anna wanted to see what battery lasts the longest she put each batter into a clock and recorded the time that the clock stopped she use their sale energizer Kroger brand and everybody what is the constant

Answer 1

These are the variables:

• Independent variable: Type of battery
• Dependent variable: Time the clock stopped
• Control: None for this experiment
• Constants: Same type of clock

What are these variables

Independent variable: The type of battery used in the experiment, deliberately changed to observe its effect on the clock's performance.

Dependent variable: The time at which the clock stops running, which varies based on the type of battery used; it's the observed outcome influenced by the independent variable.

Control: None for this experiment. A control establishes a standard for comparison; however, in this case, there isn't a specific reference battery used for comparison against the various batteries.

Constants: The same type of clock is used throughout the experiment to maintain consistency. This ensures that any changes in the clock's performance are solely due to differences in the batteries rather than variations in the clocks themselves.

Question

Anna wanted to see what battery lasted the longest. She put each battery into a clock and recorded the time that the clock stopped. She used Duracell, Energizer, Kroger brand, and EverReady. Independent Variable (IV): _Type of clock_____________________________________________ __________________________________________ Dependent Variable (DV): ______________________________________________ Control: _____________________________________________________________ Constants:____________________

Answer 2

The resistance of the clock circuit.

Step-by-step explanation:

In electricity, the potential difference or voltage is the drive force. It is known as the electromotive force in a battery or generator. The potential difference is the difference in the higher terminal and the lower terminal of the circuit. The potential difference forces electrons to move in an orderly fashion, from the higher potential to the lower potential; this flowing electrons is what is called the current of the circuit. When the electrons flow, they meet a certain amount of resistance. This resistance is unique to the material of the circuitry, and does not change in a circuit. The value of the resistance of the circuit remains the same, even when the potential difference of the electrical energy source is depleted, and current stops to flow.