Kilometertiden påvirker løpstiden.

Because both kilometertiden and løpstiden are in the definite singular form.

• kilometertid = kilometer time / pace per kilometer
• kilometertiden = the kilometer time
• løpstid = race time / running time
• løpstiden = the race time

In Norwegian, you usually add the definite ending directly to the noun:

• an en-word often takes -en in the singular definite form

So this sentence literally looks like:

• the kilometer time affects the race time

Norwegian often puts the idea of the at the end of the noun instead of using a separate article.

Compare:

• en bil = a car
• bilen = the car

So here:

• kilometertiden = the kilometer time
• løpstiden = the race time

This is one of the most important differences from English noun structure.

Yes. Norwegian very often forms compound nouns by writing them as one word.

So:

• kilometer + tid + en → kilometertiden
• løps + tid + en → løpstiden

English often uses separate words where Norwegian prefers compounds.

A native English speaker may want to write something like kilometer tiden, but that would be wrong. In Norwegian, these belong together as one word.

This is because løpstid is built from løp + tid, and the compound uses a linking -s.

This -s is very common in Norwegian compounds, though it is not always predictable at first for learners.

So:

• løp = run / race
• løpstid = race time / running time

You will see the same thing in many other compounds. The -s does not mean possession here; it is just a common linking element inside compound words.

Påvirker means affects, influences, or has an effect on.

The infinitive is å påvirke = to affect / influence.

In this sentence:

• Kilometertiden påvirker løpstiden.
• The kilometer pace affects the total race time.

It is a regular present-tense verb form here.

Because it is in the present tense.

For many Norwegian verbs, the present tense ends in -r:

• å påvirke = to affect
• påvirker = affects / is affecting

So the structure is very straightforward:

• subject + present-tense verb + object

Here:

• Kilometertiden = subject
• påvirker = verb
• løpstiden = object

In a basic Norwegian statement, the normal word order is:

• Subject – Verb – Object

So in:

• Kilometertiden påvirker løpstiden

the first noun phrase, kilometertiden, is the subject, and the second, løpstiden, is the object.

So the meaning is:

• The kilometer time affects the race time

—not the other way around.

Often, yes, in practical meaning.

Literally, kilometertid means something like kilometer time—the time used for one kilometer. In natural English, that is often best translated as:

• pace
• per-kilometer pace
• kilometer split

The exact English choice depends on context, but the Norwegian word points to the time associated with each kilometer.

Yes, depending on context.

Løpstid can refer to:

• the total time for a race
• the time spent running
• an official finishing time

In many sports contexts, race time or finishing time may sound most natural in English. In a more general context, running time could also work.

So the most natural translation may change, even though the Norwegian sentence stays the same.

A rough pronunciation guide:

• løpstid ≈ LERP-steed but with a rounded vowel that English does not really have
• ø is a front rounded vowel, somewhat like the vowel in French deux or German schön

A few pronunciation notes:

• løp has the vowel ø
• tid sounds like teed
• the compound stress usually falls mainly near the beginning: LØPS-tid

If ø is hard, that is very normal for English speakers. It takes practice.

A rough guide:

• kilometertiden ≈ shee-loh-MEH-ter-tee-den

A few notes:

• Norwegian k before i is often pronounced like sh
• ti in tiden sounds roughly like tee
• the final -en is the definite ending, pronounced clearly

The exact pronunciation depends somewhat on dialect, but this approximation is useful for learners.

Yes, Norwegian allows other word orders, but the neutral, standard order here is:

• Kilometertiden påvirker løpstiden.

If you move something to the front for emphasis, the verb must still stay in second position:

• Løpstiden påvirker kilometertiden would change the meaning
• Løpstiden påvirkes av kilometertiden would mean The race time is affected by the kilometer time

So word order matters. In the original sentence, the meaning is clear and straightforward because of the normal subject–verb–object pattern.

Yes, it is grammatically natural, especially in a training or sports context.

That said, depending on style and context, a Norwegian speaker might also say something more specific, such as:

• Kilometertiden påvirker den totale løpstiden.
• Farten per kilometer påvirker sluttiden.

But the original sentence is perfectly understandable and natural as a general statement.