Intensity is _____ to power.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

Intensity is _____ to power.

Explanation:
Intensity measures how much power arrives per unit area. When the area is fixed, increasing power increases the energy crossing that area in the same time, so intensity grows directly in proportion to power. That’s why the best answer is that intensity is proportional to power: doubling the power doubles the intensity, and halving the power halves the intensity. The other ideas don’t fit for a fixed area: an inverse relationship would imply doubling power halves intensity, which isn’t correct; equal would mean no change with power, and unrelated would deny any link between the two.

Intensity measures how much power arrives per unit area. When the area is fixed, increasing power increases the energy crossing that area in the same time, so intensity grows directly in proportion to power. That’s why the best answer is that intensity is proportional to power: doubling the power doubles the intensity, and halving the power halves the intensity. The other ideas don’t fit for a fixed area: an inverse relationship would imply doubling power halves intensity, which isn’t correct; equal would mean no change with power, and unrelated would deny any link between the two.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy