uketotta nooto o yomeba, hayaku shiken junbi o tsuzukerareru node anshin desu.

Because 受け取った only describes the noun ノート.

• 受け取ったノート = the note(s) that was/were received
• The receiving happened before the note is read, so that part is completed.

This does not make the whole sentence past tense. The main sentence is still non-past because the main idea is about a present/future result: reading the notes will let someone continue preparing.

This is a relative clause.

In Japanese, a clause comes before the noun it modifies:

• 受け取った ノート
• literally: received note
• natural English: the note(s) that [someone] received

Japanese does not need words like that, which, or who here. The modifying information simply goes before the noun.

Japanese often leaves the subject unstated when it is understood from context.

So 受け取ったノート could mean:

• the notes I received
• the notes you received
• the notes we received

The sentence itself does not force one specific subject. Context decides.

読めば is the -ば conditional of 読む.

• 読む = to read
• 読めば = if/when someone reads

So:

• 受け取ったノートを読めば = if you read the notes you received

The -ば form often sounds a little formal or logical, especially when showing a condition that leads to a result.

It looks similar, but here it is not the potential.

• 読めば = if [someone] reads
• 読めれば = if [someone] can read / if it is possible to read

That extra れ matters. So in this sentence, the meaning is not if you can read the notes, but simply if you read the notes.

Here it most likely means sooner / earlier, not at high speed.

So the idea is:

• if you read the notes, you can continue your exam preparation sooner

Japanese 早く can mean either:

• early / soon
• quickly

Context tells you which one is intended. In this sentence, sooner fits better than quickly.

試験準備 is a compound noun meaning exam preparation.

Japanese often combines nouns directly, especially in compact or slightly formal wording:

• 試験準備 = exam preparation
• 試験の準備 = preparation for the exam

Both are possible.
試験準備 sounds more compressed and written-style, while 試験の準備 can sound a bit more conversational and explicit.

Here it is the potential form of 続ける and means can continue.

• 続ける = to continue
• 続けられる = can continue

Although this form can sometimes look like a passive form, context makes the meaning clear here. The sentence is saying that reading the notes makes it possible to continue exam preparation.

That is a good question. In this sentence, 試験準備 is the thing being continued, so を is natural with 続ける.

• 試験準備を続ける = continue exam preparation
• 試験準備を続けられる = can continue exam preparation

It is true that many potential forms use が, but not every sentence works the same way. Here, the core verb is still continue X, so を sounds natural.

ので gives a reason or explanation: because / so.

Here it connects the first part to the result:

• 読めば、早く試験準備を続けられるので安心です
• If you read the notes, you can continue exam preparation sooner, so that is reassuring / so I feel relieved.

Compared with から, ので usually sounds softer and more explanatory.

安心 can act like a na-adjective or noun meaning relief / peace of mind / reassuring.

So 安心です means something like:

• that is reassuring
• I feel relieved
• it is a relief

安心します focuses more on the action or moment of becoming relieved.
安心です sounds more like a calm statement about the situation.

No. Normal Japanese writing would usually be written without spaces:

受け取ったノートを読めば、早く試験準備を続けられるので安心です。

Spaces are often added only in teaching materials to make the sentence easier for learners to read.