Piezoelectric crystals likely create sound by A. rapidly expanding and contracting.

Here's a step-by-step explanation:

1. Piezoelectricity is the electric charge that accumulates in certain solid materials, such as crystals, in response to applied mechanical stress.

2. When an electric field is applied to a piezoelectric crystal, it changes shape (expands or contracts).

3. If this electric field is oscillated, the crystal will expand and contract at the same frequency.

4. This rapid expansion and contraction pushes on the surrounding air, creating pressure waves that we perceive as sound.

So, the correct answer is A. rapidly expanding and contracting.

Question

Piezoelectric crystals likely create sound by A. rapidly expanding and contracting.

Here's a step-by-step explanation:

1. Piezoelectricity is the electric charge that accumulates in certain solid materials, such as crystals, in response to applied mechanical stress.

2. When an electric field is applied to a piezoelectric crystal, it changes shape (expands or contracts).

3. If this electric field is oscillated, the crystal will expand and contract at the same frequency.

4. This rapid expansion and contraction pushes on the surrounding air, creating pressure waves that we perceive as sound.

So, the correct answer is A. rapidly expanding and contracting.

Knowee AI · Accepted Answer

Piezoelectric crystals likely create sound by A. rapidly expanding and contracting.

Here's a step-by-step explanation:

1. Piezoelectricity is the electric charge that accumulates in certain solid materials, such as crystals, in response to applied mechanical stress.

2. When an electric field is applied to a piezoelectric crystal, it changes shape (expands or contracts).

3. If this electric field is oscillated, the crystal will expand and contract at the same frequency.

4. This rapid expansion and contraction pushes on the surrounding air, creating pressure waves that we perceive as sound.

So, the correct answer is A. rapidly expanding and contracting.

Piezoelectric crystals likely create sound by:A.rapidly expanding and contracting.B.emitting high-energy photons.C.generating heat waves.D.sending pulses of electricity.