Under 94a of House of Representatives Standing Orders (rules), the Speaker can direct a disorderly member to leave the chamber for one hour. During that hour, the member cannot enter the chamber which means they cannot participate in the meeting and cannot make a speech or vote.
94a helps the Speaker keep order in the House. It is most often used during Question Time which can be the liveliest part of the sitting day. During Question Time members of parliament can ask the government to explain its actions and decisions. Members will sometimes interject, or call out, when the Prime Minister or a minister is answering a question. The Speaker may give the member a warning, however if they decide their conduct is too disorderly, the Speaker can immediately suspend them from the House under 94a.
If you would like more information about Question Time, you can watch this video.