Reflection of Sound Quiz

What components are included in the reflection of sound apparatus?

• A single solid tube, a sound absorbing surface, a protractor, and a timer

• Two solid tubes, a sound reflecting surface, a compass, and a clock

• A single hollow tube, a sound absorbing surface, a ruler, and a stopwatch

• Two cylindrical hollow tubes, a sound reflecting surface, a protractor, and a timer

When the lower end of tube one is moved to 20°, what is the angle of reflection?

• 30°

• 20°

• 40°

• 10°

At what angle is the lower end of tube one moved to achieve an angle of reflection of 40°?

• 20°

• 50°

• 30°

• 40°

What is the angle of incidence when the lower end of tube one is moved to 60°?

• 50°

• 60°

• 70°

• 80°

What is the angle of reflection when the lower end of tube one is moved to 80°?

• 60°

• 80°

• 70°

• 90°