Physics Semester 2 Final Review

Front

What is the formula for calculating potential energy?

Back

Potential Energy (PE) = mass (m) × gravity (g) × height (h). For Earth, g ≈ 9.81 m/s².

Front

How do you calculate average speed?

Back

Average Speed = Total Distance / Total Time.

Front

What does a position vs time graph represent?

Back

It shows the position of an object at different times, allowing us to determine its velocity.

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is Newton's 2nd Law of Motion?

Back

Force (F) = mass (m) × acceleration (a). This law explains how the velocity of an object changes when it is subjected to an external force.

Front

What is Newton's 3rd Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What does a velocity vs time graph indicate?

Back

It shows how the velocity of an object changes over time, allowing us to determine acceleration.

Front

What is the significance of a flat line on a velocity vs time graph?

Back

A flat line indicates constant velocity, meaning there is no acceleration.

Front

How do you determine the velocity from a position vs time graph?

Back

Velocity is the slope of the position vs time graph.

Front

What is the relationship between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).