Question

If the wavelength is increased to 10m but the speed stays at 600 m/s, the frequency will become f = 600 ÷ 10 = 60 Hz. So the frequency is changed from 120 Hz to 60 Hz.

proofread and list all errors pls. keep my wprding

Answer 1

Original (kept exactly as requested):
"If the wavelength is increased to 10m but the speed stays at 600 m/s, the frequency will become f = 600 ÷ 10 = 60 Hz. So the frequency is changed from 120 Hz to 60 Hz."

Errors / issues (with brief explanations and suggested fixes):

1. "10m" — missing space between number and unit. SI convention: "10 m".
2. Inconsistent spacing for units — you use "10m" (no space) but "600 m/s" (space). Make them consistent: "10 m" and "600 m/s".
3. Use of the division symbol "÷" — uncommon in scientific writing. Prefer a slash or fraction: "f = 600/10 = 60 Hz" or "f = 600 m/s ÷ 10 m = 60 Hz" (or better: "f = v/λ = 600 m/s ÷ 10 m = 60 Hz").
4. Missing explicit formula — it helps clarity to state f = v/λ before the calculation.
5. Tense/voice inconsistency — first sentence uses "will become" (future), second uses "is changed" (present passive). Suggest making them consistent (e.g., "becomes" or "has changed").
6. Slight redundancy — the second sentence repeats the same information already given in the first sentence; you can keep it, but it's repetitive.
7. Missing context for "120 Hz" — you state the frequency changed from 120 Hz to 60 Hz without showing how 120 Hz was obtained (implicitly from a 5 m wavelength). If this came from earlier work, note that; otherwise provide the initial condition.

Minor/punctuation:
8. Space around equals signs and operators is fine but could be standardized: "f = 600/10 = 60 Hz" (consistent spacing).
9. Stylistic: Starting the second sentence with "So" is informal (not an error, just style).

(Also: in your instruction you wrote "wprding" — that looks like a typo of "wording".)

If you want, I can produce a corrected version while keeping your wording as close as possible.