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Practice MCQs on acceleration free fall, physics MCQs for online test prep. Kinematics quiz has multiple choice questions (MCQ), acceleration free fall quiz questions and answers as which of following is one of characteristic of air resistance, answer key with choices as it does not oppose motion, it decreases with speed of object, it decreases with surface area and it increases with density of air for competitive exam prep. Free study guide is to learn acceleration free fall quiz online with MCQs to practice test questions with answers.

MCQ. Which of following is one of characteristic of air resistance

1. It does not oppose motion
2. It decreases with speed of object
3. It decreases with surface area
4. It increases with density of air

D

MCQ. Air resistance is a

1. frictional force
2. gravitational force
3. backward force
4. balanced force

A

MCQ. If a feather and an iron bar is released from a same height in a room without any air resistance. Which will fall first?

1. Iron bar
2. Feather
3. Both at same time
4. They won

C

MCQ. Gravitational force of earth is

1. 5.4 ms-2
2. 6.9 ms-2
3. 9.8 ms-2
4. 11.1 ms-2

C

MCQ. Which of following is not characteristic of air resistance

1. It always opposes motion
2. It decrease with speed of object
3. It increases with surface area
4. It increases with density of air

B