Newtons LawsKey Points: Interjections are not grammatically connected to the rest of the sentence. They show emotion, reaction, or sudden feeling. They can appear at the beginning, middle, or end of a sentence

An interjection is a word or short phrase that expresses a strong feeling, emotion, or reaction. It usually stands alone and is followed by an exclamation mark (!) or sometimes a comma (,) if the emotion is mild.
Key Points:

Interjections are not grammatically connected to the rest of the sentence.

They show emotion, reaction, or sudden feeling.

They can appear at the beginning, middle, or end of a sentence

1. "Dear Lord, we thank You for this new day and the opportunity to learn. Please grant us wisdom to understand, patience to learn, and kindness to support one another. Guide our thoughts and actions as we study and grow, helping us to focus and to honor You in all we do. Amen".

2. Newtons Laws of Motion

3. Newtons Laws of Motion Law of Inertia F = ma Action-Reaction

4. Learning Objectives I can state Newton’s Laws of Motion. I can apply Newton’s Laws of Motion to real life situations. I can describe momentum of different objects and how it affects motion. I can explain the relationship between inertia and mass.

5. Newton ’ s Laws of Motion

6. Background Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of the law of gravity also discovered the three laws of motion . He published them in his book Philosophiae Naturalis Principia Mathematica (mathematic principles of natural philosophy) in 1687 . Today these laws are known as Newton’s Laws of Motion and describe the motion of all objects on the scale we experience in our everyday lives.

7. Newton’s 3 Laws of Motion 1. An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted upon by an unbalanced force. 2. Force equals mass times acceleration (F = ma). 3. For every action there is an equal and opposite reaction.

8. Newton’s First Law ( law of inertia ) An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an unbalanced force.

9. Newton’s First Law of Motion: Also know as: Law of Inertia! Inertia is an objects resistance to a change in its motion (even if it isn’t moving at all!) Inertia is caused because objects have mass The more mass an object has, the more inertia! “An object at rest will stay at rest unless it is acted upon by an outside force.” (and the opposite is also true! An object in motion will stay in…blah blah blah)

10. Newton’s First Law (law of inertia)

11. Newton’s Second Law (F = ma) Force equals mass times acceleration. F = ma Acceleration : a measurement of how quickly an object is changing speed.

12. More Force = more Acceleration More Mass = more Force needed! Newton’s Second Law of Motion says: “To move a mass, you need a force!” Also known as F=ma I am so smart … The greater the mass = greater inertia = more force needed!

13. What do you think happens to our acceleration w/ different masses if we pushed with the same amount of force? Distance Time Which one of these lines do you think would represent a sports car? SUV, Diesel Truck? Sports car would be the steepest line! Steeper = more velocity!!! The Diesel truck would be the least steep line! Less steep = less velocity!!! The SUV would be the middle line! Steepness of line is in the middle = middle velocity

14. Newton’s Third Law (Action-Reaction) For every action there is an equal and opposite reaction.

15. Newton’s Third Law of Motion Also known as: Action-Reaction “For every action there is an equal and opposite reaction.” Rockets take off because of a force downwards from the bottom makes them accelerate in the opposite direction! Downwards force Upwards reaction

16. Vocabulary Inertia: the tendency of an object to resist changes in its state of motion Acceleration: •a change in velocity •a measurement of how quickly an object is changing speed, direction or both Velocity: The rate of change of a position along a straight line with respect to time Force: Push or pull (strength or energy

17. 1.) An automobile accelerates uniformly at 8 m/s2. If the force causing the acceleration is 6,000N, what is the mass of the automobile?

18. 2.) Find the force required to increase the velocity of a 1.2 kg mass from 3 m/s to 8 m/s over a period of 4 seconds. Step 1 Step 2

19. 3.) A force of 200N is applied on a 10kg box across a frictionless surface. a.) What is the acceleration of the box? b.) if the box accelerates from rest, what will its final speed be after 8 seconds? c.) How long will it take the box to reach a speed of 500 m/s if it continues to accelerate at this rate? a) b) c)