BELDANCA L. A. d. 9. Mon SCHOOL TEST EXAMINATION : Subject : Time- 3 Hrs. 15 Min. Class -X Physical Science fM. ৪০ Group - A 1. সঠিক উত্তরটি নির্বাচন করে পূর্ণবাক্যে লেখাে। 1x5=15 i) মেরুজ্যোতি উৎপন্ন হয় বায়ুমন্ডলের যে স্তরে সেটি হল - (a) ওজোননাস্ফিয়ার {b) আয়নােস্ফিয়ার (c) ট্রোপােপজ (d) মেসােস্ফিয়ার ৫০ নেতি PUBापित कर পক - 3 answer b

A12-kg bag of groceries is tossed onto a table at 4.0 m/s and slides to a stop in 2.2 s . modify the equation fδt=δ (mv) to find the force of friction.

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction