Exam Review

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the outcome or response that is measured in an experiment, which is affected by changes in the independent variable.

Front

What is gravity?

Back

Gravity is a force that attracts two objects with mass towards each other. It is the reason why objects fall to the ground.

Front

What does it mean when we say a sound wave has low energy?

Back

A sound wave with low energy has a lower amplitude, which means it is quieter and less intense than a sound wave with high energy.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

What is Newton's First Law of Motion?

Back

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by a net external force.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia. This means heavier objects require more force to change their motion.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is the significance of averaging in experiments?

Back

Averaging helps to minimize the effects of random errors and provides a more accurate representation of the data collected.

Front

What is amplitude in relation to sound waves?

Back

Amplitude is the height of the wave and determines the loudness of the sound; higher amplitude means louder sound.

Front

What is a scientific graph?

Back

A scientific graph visually represents data and relationships between variables, making it easier to analyze trends and patterns.