Answer: This is your sister in law :-)
The heavier object has a greater acceleration. The object that has the greater surface area has the lower acceleration. The object that has the smaller mass has the greater acceleration.
Lexilogos has a good dictionary, but I would recommend you using DuoLingo to begin learning.
English: I would like to introduce you to Aaron.
German: Ich möchte euch Aaron vorstellen.
Hope this helped answer your question for you. Good day to you.
1. Am Sonntag räumt meine Schwester das Zimmer.
2. Ihr liest gern ein Roman Abends.
4. Der kleine Bruder hört seiner Schwester aufmerksam zu.
You are allowed to change the ending of the words just I don’t really get the 3 question is there a word missing?