Semester 1 Exam Study Guide

Front

What is an independent variable?

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 a dependent variable?

Back

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

Front

What type of force causes acceleration in an object?

Back

Unbalanced force causes acceleration in an object, as it results in a change in the object's motion.

Front

How does velocity affect kinetic energy?

Back

Kinetic energy increases with the square of the velocity; therefore, an object with higher velocity has more kinetic energy.

Front

What happens to particles with the same charge?

Back

Particles with the same charge repel each other.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the pH scale used for?

Back

The pH scale measures the acidity or alkalinity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is the relationship between mass and acceleration in an unbalanced force scenario?

Back

According to Newton's second law, acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of a balanced force?

Back

An example of a balanced force is when two people push against each other with equal force, resulting in no movement.