2. SECOND NEWTONS LAW Prerequisites Level Key learning objectives Resource Keywords Tests Lesson Lets have fun

3. Listening: Video 1 Video When youre ready please click on Video, watch it twice and write an essay of about 150 words.

4. Test Page

5. Level: 3rd class of secondary school with emphasis in science Difficulty: medium

6. Prerequisites Knowledge of English language pre-intermediate Knowledge of Physics elements: Force; Acceleration; Velocity Mass First Newtons law

7. Key learning objectives The students will have to: learn about the second Newtons law; Understand the relation between force mass and acceleration; Know the units of the elements; Know how to solve simple problems.

9. Listening exercise Multiple Choice exercise

11. RESORCE

12. MULTIPLE CHOICE EXERCISE A kilogram is a measure of an object's A) weight.weight. B) force.) force. C) mass.mass. D) gravity.) gravity. E) center of mass.) center of mass. Question n.1 Pag. test

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15. MULTIPLE CHOICE EXERCISE 8) Compared to the mass of a certain object on Earth, the mass of the same object on the moon is Question n.2 B) Less. C) the same. A) More. Pag. test

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18. MULTIPLE CHOICE EXERCISE The newton is a unit of Question n.3 B) mass A) force C) density D) inertia Pag. test

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21. MULTIPLE CHOICE EXERCISE C) a property of mechanical equilibrium. Question n.4 Your weight is B) the gravitational attraction between you and the Earth. A) actually your mass. E) none of these. D) all of these. Pag. test

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24. MULTIPLE CHOICE EXERCISE Question n.5 An object maintains its state of motion because it has A) mass. E) all of these. B) weight. C) speed. D) acceleration. Pag. test

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26. Test Page

27. Force is what causes mass to accelerate or become deformed. Force Acceleration is the rate at which the velocity of a body changes with time Accelerationratevelocity body In kinematics, Velocity is the speed of an object and a specification of its direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving.Velocity Mass is a quantitative measure of an object's resistance to acceleration Mass