Newton's Laws of Motion at Work Science Presentation in Beige Charcoal Hand Drawn Style.pptx

Newton Law of Motion

1. ISAAC NEWTON’S THREE LAWS OF MOTION

2. RELATIONSHIP BETWEEN FORCE AND MOTION A push, pull, or twist upon an object. It is often a result of an interaction between two objects. An object free to move will move once acted upon by force.

3. VELOCITY INERTIA An object free to move will move once acted upon by force. ACCELERATION It is an object's resistance to changing its motion. The speed and direction of an object in motion. The change in an object's velocity. MOTION

4. Apart from gravity, Newton also explained how the balance of forces affect an object's movement. ISAAC NEWTON'S IDEAS But when the forces are unbalanced, the object will either speed up, slow down, or change its direction. When forces are balanced, the object will remain in its state of motion (either at rest or in constant motion)

5. Together with a seatmate, find different ways of moving your chairs in different directions without standing up. EXPERIMENT BREAK What happens when the chair is pushed by the other person? What do you observe when you push each other at the same time?

6. NEWTON'S FIRST LAW OF MOTION 1. The Law of Inertia Objects in motion will stay in motion, and objects at rest will stay at rest—unless acted upon by an unbalanced force.

7. NEWTON'S FIRST LAW OF MOTION Inertia is the tendency of a body to resist a change in its state of motion . Mass is a measure of inertia. The greater the mass of the body, the greater is its inertia. The greater the inertia of a body, the harder it is to change its state of motion.

8. Object at Rest The first part of Newton’s first law concerns object at rest. An object at rest will remain at rest unless acted upon by an unbalanced force. You are familiar with the fact that nothing in nature will start by itself.

9. Object in Uniform Motion The second part of Newton’s first law concerns a state of uniform motion. An object in uniform motion will remain in uniform motion unless acted by an unbalanced force.

10. 2. NEWTON'S SECOND LAW OF MOTION The Law of Acceleration states that the acceleration of an object with constant mass is proportional to the net force action on it and is in the same direction of the net force

11. NEWTON’S SECOND LAW OF MOTION The second law of motion goes on a step further and states that when a net force acts on a body, the body will accelerate in the direction of the net force. The acceleration is directly proportional to the magnitude of the net force. Furthermore, the acceleration is inversely proportional to the mass of the body.

12. One of the most common situations where Newton’s second law of motion is experienced is driving a car. The engine produces force in the forward direction to accelerate the car. The brakes, on the other hand, produce force in the opposite direction to slow it down.

13. Force and acceleration The first part of Newton’s second law of motion states that the greater the unbalanced force, the greater the acceleration of the body being acted upon. If a force F ₁ is applied to a body at one time and a force F ₂ at another time, then      

14. Sample problem A force of 5.o N accelerates an object by 2.o m/s². What force is needed to give the same object an acceleration of 3.4 m/s²? Given: F ₁ 5.o N a₁ 2.o m/s² a ₂ 3.4 m/s² F ₂ ?  

15. The second part of Newton’s second law of motion states the effect of the mass of an object on the acceleration produced when a force acts on it. The greater the mass of an object, the greater the amount of matter that has to be accelerated . Hence, the greater the amount of force that should be applied. If a given force acts on two different objects, the acceleration of the object with a smaller mass will be less than the acceleration of the object with a smaller mass. Thus, you say that the acceleration of an object is inversely proportional to its mass . If the same force is applied to two different objects with masses m ₁ and m₂, then m ₁a ₁= m₂a ₂ MASS AND ACCELERATION

16. Sample problem A certain force accelerates a 3.2 kg body by 2.4 m/s². What would be the acceleration of a 1.6 kg body when the same force acts on it? Given: m ₁ kg m ₂ 1.6 kg a ₁ 2.4 m/s² a ₂=?  

17. This inversely relationship between mass and acceleration is utilized in the design of race cars. Race engineers try to keep the cars mass as low as possible to achieve greater acceleration. Greater acceleration means greater chances of winning this race. Combining the effect of force F and mass m on the acceleration a of an object, Newton’s second law may be written as a=  

18. Sample problem A golf ball has a mass of approximately 0.046 kg. How much force must be applied to the tee shot so that the ball will move from the rest to 8.25 m/s in 0.046?? Given: m 0.046 kg vi t vf = 8.25 m/s  

19. 3. NEWTON'S THIRD LAW OF MOTION The Law of Action and Reaction Every action force has a reaction force that is equal in size and opposite in direction.

20. The Law of Action and Reaction On a rocket launch, the shuttle exerts a downward force, and the reaction force of the same size pushes it upward. 3.

21. 2. The Law of Acceleration The car accelerates forward since the force due to its engine is greater than the friction on the road.

22. The motion of an object depends on the balance of forces acting on it. IT'S A WRAP! Force and motion are related because motion is a result of force. Newton's Laws of Motion are: The Law of Inertia The Law of Acceleration The Law of Action and Reaction

23. Reference Anthony, Elizabeth, et al. “What Are Newton's Laws?” OER Commons, University of California Davis, 2013, https://www.oercommons.org/courses/what-are-newton-s-laws/view.

24. Use these icons and illustrations in your Canva Presentation. Happy designing! Don't forget to delete this page before presenting. 3. 2. 1. Resource Page

25. Try this background for online class. *Please delete this section before downloading. Sir Isaac Newton

26. Q M C U O for bubbles for unveil Press these keys while on Present mode! for confetti for a drumroll Any number from 0-9 for a timer for blur for quiet for mic drop B D o - 9