Which statement about frequency is accurate?

Which statement about frequency is accurate?

• A. Frequency is how many cycles per minute
• B. Frequency is how many radio waves are generated per second
• C. Frequency measures the energy of a wave
• D. Frequency is the time between wave crests

Answer: (B)

The main idea is that frequency is the rate at which wave cycles occur over time. For radio waves, that means how many complete wave cycles are produced each second. The statement that describes this as the number of radio-wave cycles generated per second matches this concept directly, which is why it’s the best answer. The other options aren’t correct for this concept: cycles per minute would be a valid rate only if you’re using minutes, but the standard definition uses seconds (hertz). Frequency is not a measure of a wave’s energy—energy relates to frequency but is not what frequency itself measures. And the time between wave crests is the period, not frequency.

The main idea is that frequency is the rate at which wave cycles occur over time. For radio waves, that means how many complete wave cycles are produced each second. The statement that describes this as the number of radio-wave cycles generated per second matches this concept directly, which is why it’s the best answer.

The other options aren’t correct for this concept: cycles per minute would be a valid rate only if you’re using minutes, but the standard definition uses seconds (hertz). Frequency is not a measure of a wave’s energy—energy relates to frequency but is not what frequency itself measures. And the time between wave crests is the period, not frequency.