Physics Final Exam

Front

What is rarefaction in a longitudinal wave?

Back

A part in a longitudinal wave where the particles are spread apart.

Front

What does Newton's 3rd law state?

Back

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

Front

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s². What is its velocity after 2 s?

Back

1 m/s

Front

What does a graph representing constant speed look like?

Back

It shows a straight line with a constant slope.

Front

What is potential energy?

Back

The energy an object has due to its position or condition.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is the difference between speed and velocity?

Back

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

Front

What is the formula for calculating force?

Back

F = ma, where F is force, m is mass, and a is acceleration.