Newton’s law of motion, Forces and its types. Science CBSE, Class 9: lessons, tests, tasks.

1.	Force
2.	Galileo's law of inertia
3.	Balanced and unbalanced forces
4.	First law of motion
5.	Inertia and mass
6.	Momentum
7.	Second law of motion
8.	Mathematical formulation of second law
9.	Applications of second law
10.	Third law of motion
11.	Action and reaction forces
12.	Conservation of momentum

1.	Properties of force Difficulty: easy	3
2.	Force calculation Difficulty: easy	3
3.	Law of inertia Difficulty: medium	2
4.	Balanced and unbalanced force Difficulty: medium	2
5.	Analysis of laws of motion Difficulty: medium	6
6.	Problem on velocity Difficulty: medium	6
7.	Problem on force Difficulty: medium	6
8.	Problem on acceleration (Second law of motion) Difficulty: medium	6
9.	Recoil velocity Difficulty: medium	6
10.	Horizontal velocity Difficulty: medium	6
11.	Problem based on law of conservation of momentum Difficulty: medium	6
12.	Problem based on acceleration and force Difficulty: medium	6
13.	Problem based on Second law of motion Difficulty: medium	6
14.	Problem on frictional force Difficulty: medium	6
15.	Equations of motion Difficulty: medium	6
16.	Momentum calculation Difficulty: medium	5
17.	Law of conservation of momentum Difficulty: medium	8
18.	Change of momentum Difficulty: medium	6
19.	Momentum after collision Difficulty: medium	5
20.	Problem on force (equations of motion and second law of motion) Difficulty: medium	8
21.	Velocity-time graph Difficulty: hard	6
22.	Magnitude of force Difficulty: hard	8
23.	Uniform velocity Difficulty: hard	8

1.	Training test 1 Difficulty: medium	11
2.	Training test 2 Difficulty: medium	18

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Newton’s law of motion, Forces and its types