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← BUET Model Test for Exam

ORIGINAL WRITTEN REHEARSAL

Model Test for Exam

BUET Model Test for Exam

Choose a subject or the available combined paper. The 30- and 90-minute timers are practice options, not a claim about the institution’s current format. These original questions are not past papers. Answers stay in this browser; no school grade, coin balance or enrolment changes.

Set 1 of 1 available paper set.

5 written questions: 3 can be checked against the answer key; 2 need a guardian or subject teacher to review. Architecture drawing is an optional separate paper.

Your written questions

Work on paper and enter the requested answer. Explain reasoning in the longer response boxes. Keep your work if you want a teacher to review it.

Passage or question givens

A 1 kg object falls 5 m from rest. Use g = 10 m/s² and neglect air resistance in the ideal model. Explain how appreciable drag would change that prediction.

Mechanics, thermal physics, waves and electricity

Model answer and review guidance

100

mgh=2×10×5.

Mechanics, thermal physics, waves and electricity

Model answer and review guidance

400

f=v/λ=300/0.75.

Mechanics, thermal physics, waves and electricity

Model answer and review guidance

120

E=Pt.

Mechanics, thermal physics, waves and electricity

Model answer and review guidance

mgh=mv²/2 gives v=√(2gh)=√100=10 m/s.

Show cancellation and the loss assumption.

Mechanics, thermal physics, waves and electricity

Model answer and review guidance

Some gravitational energy transfers to the air and thermal stores rather than kinetic energy.

Account for energy without claiming it is lost from the total.

The automatic result counts exact supported answer-key matches. Other valid wording, working, handwriting and compositions need human review. It is not an overall examination mark or an admission prediction.