Class 9th Science Session 2022-23 Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions Class IX Science MCQ Extra Questions Answers

Fuel is burned in the rocket and the exhaust gases are made to escape in a downward direction through a narrow nozzle. As a response, the rocket accelerates upward.

Mass of rocket is greater than mass of gases as the rocket is used for carrying a satellite etc. to a suitable height above the ground.

The first cell was observed in cork slice. Robert Hooke in 1665, observed the cells in a cork slice with the help of a primitive microscope.

Farmers typically use techniques such as hand picking, breaking and sifting to purify the grain.

Separation of components of a mixture is done to obtain purity of a substance and remove undesirable components.

According to Newton’s second law of motion. Force = Rate of change in momentum F = m(v-u)/t = 5 (12 – 8)/4 = 5 N

According to the Newton’s second law of motion, resultant force on a body is responsible for its acceleration.

DNA molecules contain the information necessary for building and organizing cells. Functional segments of DNA are called genes. In a cell that is not dividing, this DNA is present as a part of the chromatin material.

Class IX Science MCQ Extra Questions Answers Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions Class 9th Science Session 2022-23