Question

data table kinetic energy
rudolf and dasher wanted to test how velocity affects kinetic energy.
rudolf thinks that if a toy sleigh has more velocity it will increase the
amount of kinetic energy. but dasher thinks that you cant really predict
kinetic energy, it just happens randomly.
to figure out who was right they made an experiment. they set up a toy
track and used a stopwatch to see how fast the car was going. they let the
toy sleigh go down the track and recorded the speed each time. they
repeated this 6 times changing the speed for each trial. once they got all
their results they used the following equation to find kinetic energy.
ke = 1/2 mv² they entered the amount of kinetic energy in the table below.
matching 1 point
identify the variable in the experiment by matching them.
independent variable
dependent variable
control variable

Explanation:

• Independent Variable: This is the variable that is changed or manipulated in an experiment. In this case, the speed (velocity) of the toy sleigh is deliberately changed for each trial.
• Dependent Variable: This is the variable that is measured and depends on the independent variable. Here, the kinetic energy is calculated using the formula \(KE = \frac{1}{2}mv^{2}\), and its value changes based on the velocity (the independent variable).
• Control Variable: A control variable is kept constant throughout the experiment. The mass of the toy sleigh (\(2\ kg\)) is unchanged in all trials.

Answer:

• Independent Variable: Velocity
• Dependent Variable: Kinetic Energy
• Control Variable: Mass