BMST Waves, Sound, and Light

Question 1

What is the approximate speed of light in a vacuum?

Accepted Answer

3 × 10⁸ m/s

Answer

3 × 10⁶ m/s

Answer

3 × 10¹⁰ m/s

Answer

3 × 10⁴ m/s

Question 2

What type of wave is sound?

Accepted Answer

Longitudinal wave

Answer

Transverse wave

Answer

Electromagnetic wave

Answer

Surface wave

Question 3

What is the relationship between frequency and wavelength for a wave traveling at constant speed?

Accepted Answer

They are inversely proportional

Answer

They are directly proportional

Answer

They are always equal

Answer

They are unrelated

Question 4

When a light ray bounces off a surface at the same angle it hit, what phenomenon is occurring?

Accepted Answer

Reflection

Answer

Refraction

Answer

Diffraction

Answer

Absorption

Question 5

What is the unit of frequency?

Accepted Answer

Hertz (Hz)

Answer

Meter (m)

Answer

Second (s)

Answer

Watt (W)

Question 6

If the frequency of a sound wave increases, what happens to the pitch heard by a listener?

Accepted Answer

Pitch increases

Answer

Pitch decreases

Answer

Pitch stays the same

Answer

Pitch becomes inaudible

Question 7

What is the bending of light as it passes from one medium into another medium called?

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Polarization