Define the term force.

Important Questions on Force and Laws of Motion

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 2

On what factors does inertia depend?

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 3

Why is landing pit in the long jump event made loose with a bed of sand?

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 4

When are the forces acting on a body said to be balanced? Give an example. What type of change can the balanced forces bring about in an object?

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 5

Out of two bodies of masses $10 \mathrm{kg} \mathrm{and} 50 \mathrm{kg}$, which one has more inertia? Also calculate the ratio of inertia of the two bodies.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 6

Why is no force required to move an object which is in motion with a constant velocity?

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 7

A cricket player lowers his hands while catching a fast moving ball. Explain why?

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 8

Two similar buses are moving with the same velocity on the road. One of them is empty and the other is loaded with passengers. Which of the two will be stopped by the application of lesser force? Explain. 

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 2 - Force and Laws of Motion>CHAPTER PRACTICE TEST 2>Q 9

Although action and reaction are equal and opposite they do not cancel each other. Explain why?