Final Review Day 1 2024

Front

Who proved that all objects fall at the same rate when neglecting air resistance?

Back

Galileo

Front

What is the formula for centripetal acceleration?

Back

Centripetal acceleration (a_c) = v^2 / r, where v is the velocity and r is the radius.

Front

What do sonar, dog whistles, and ultrasound have in common?

Back

They all use sound waves.

Front

What type of wave has amplitude perpendicular to the wavefront?

Back

Transverse Wave

Front

What is destructive interference?

Back

Waves cancel one another at least partially (node).

Front

What is the centripetal acceleration of a bob on a 3 m string moving at 6 m/s?

Back

12 m/s^2

Front

What is the difference between longitudinal and transverse waves?

Back

In longitudinal waves, the displacement is parallel to the direction of wave propagation; in transverse waves, it is perpendicular.

Front

What is the speed of sound in air at room temperature?

Back

Approximately 343 m/s.

Front

What is the principle of superposition in wave theory?

Back

When two or more waves overlap, the resultant displacement is the sum of the individual displacements.

Front

What is a node in wave interference?

Back

A point where the wave has zero amplitude due to destructive interference.