1-mavzu. (Test)

30-mavzu.(Test)

1.Bikrligi 100N/m yukining massasi 1kg bo’lgan prujinali mayatnikni tebranish davrini toping?

A)62,8s B)0,628s C)3,14s D)0,314s

2.Bikrligi 50N/m , yukining massasi 2kg bo’lgan prujinali mayatnikni siklik chastotasini toping?(rad/s)

A)2 B)4 C)5 D)6

3.Prujinali mayatnik tebranish maplitudasi 4 marta oshirildi uning tebranish chastotasi qanday o’zgaradi?

A)2marta ortadi B)2marta kamayadi C)O’zgarmaydi D)4marta ortadi

4.Chastotasi 6Hz bo’lgan, prujinali mayatnik yukining massasi 9marta ortsa uning tebranish chastotasi qanchaga teng bo’lib qoladi?

A)2Hz B)4Hz C)6Hz D)8Hz

5.Agar prujinali mayatnikni bikrligi 16marta kamaysa uning chastotasi qasnday oz’garadi?

A)4marta ortadi B)4marta kamayadi C)O’zgarmaydi D)TJY

6.Agar prujina bikrligi va yukining massasi 4marta oshsa uning siklik chastotasi qanday o’zgaradi?

A)2marta ortadi B)2marta kamayadi C)O’zgarmaydi D)TJY

7.Vaznsizlikda quyidagilarni qaysi biridan foydalanish mumkin?

A)Qum soat B)Matematik mayatnik C)Prujinali mayatnik D)Hech biri

8.Prujinali mayatnikni amplitudasi 9marta oshirilsa uning davri qanday o’zgaradi?

A)3marta ortadi B)3marta kamayadi C)O’zgarmaydi D)Aniqlab bo’lmaydi

9.Prujinali mayatnik tebranayotgan vagon tezlanishi 4 marta ortsa uning siklik chastotasi qanday o’zgaradi?

A)2 marta ortadi B)2 marta kamayadi C)O’zgarmaydi D)TJY

10.Agar prujinali mayatnikni tebranish davri 4 marta ortsa uning bikrligi 2 marta kamaygan bo’lsa uning massasi qanday o’zgaradi?

A)4marta ortadi B)8marta kamayadi C)8marta ortadi D)O’zgarmagan