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Practice Dynamics MCQ questions and answers PDF, dynamics quiz answers PDF worksheets to solve grade 9 physics test 8 for online classes. Practice "Newtons Laws of Motion" Multiple Choice Questions and Answers (MCQs), dynamics quiz questions and answers for online classes. Learn physics study guide, physics: friction, dynamics and friction, newton's laws of motion test prep for online education.

"A group of interacting bodies on which no external force is acting is known as" Multiple Choice Questions (MCQ) on dynamics with choices isolated system, sexasigmal system, sgs system, and none of above for online classes. Solve physics study guide for online courses newtons laws of motion quiz questions for virtual online school.

MCQ: A group of interacting bodies on which no external force is acting is known as

1. sexasigmal system
2. isolated system
3. SGS system
4. none of above

B

MCQ: When we walk or run, to push the ground backward we need

1. inertia
2. position
3. friction
4. velocity

C

MCQ: If the pressing force on the sliding surfaces is greater, then friction will be

1. small
2. constant
3. zero
4. greater

D

MCQ: A force of 15 N moves a body with an acceleration of 3 ms−2. Its mass is

1. 10 kg
2. 8 kg
3. 12 kg
4. 5 kg

D

MCQ: Law of inertia is also known as newton's

1. 1st law of motion
2. 2nd law of motion
3. 3rd law of motion
4. all of above

A