Exploring Variables in Experiments

Front

What is a dependent variable?

Back

The dependent variable is the factor in an experiment that is measured or observed to assess the effect of changes in the independent variable.

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

Front

In an experiment, why is it important to keep certain factors constant?

Back

Keeping certain factors constant ensures that any changes in the dependent variable can be attributed solely to the manipulation of the independent variable, leading to valid results.

Front

What is the purpose of a control group in an experiment?

Back

A control group serves as a baseline to compare the effects of the independent variable, helping to isolate the impact of the variable being tested.

Front

How does changing the weight of a pendulum affect its speed?

Back

In a pendulum experiment, the weight is the independent variable, and the speed is the dependent variable. The speed of the pendulum may change based on the weight, but the relationship can vary depending on other factors.

Front

What is viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow. It can be affected by temperature and other factors.

Front

What is the relationship between light color and plant growth?

Back

Different colors of light can affect the growth of plants, making the growth of the plant the dependent variable in experiments testing this relationship.

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another. It can affect the distance a toy car travels.

Front

What is the significance of the angle of a ramp in a toy car experiment?

Back

The angle of the ramp is the independent variable that can affect the speed of the toy car, which is the dependent variable.

Front

What is the role of the type of surface in a friction experiment?

Back

The type of surface is the independent variable that can influence the amount of friction experienced by the toy car, affecting how far it travels.