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Newton’s first law of motion: an object at rest/motion will stay at rest/motion until a force acts on it. Law of Inertia https://www.youtube.com/watch?v=8b-Mogqy1h4 http://www.aaronswansonpt.com/basic-biomechanics-newtons-laws-of-motion

Newton’s second law of motion: how much an object accelerates depends on its mass and the force acting on it. F= m/a https://www.youtube.com/watch?v=iwP4heWDhvw F m a http://popphysics.com/chapter-2-newtons-laws/newtons-second-law-part-2-multiple-forces/

Newton’s third law of motion: Every action has an equal and opposite reaction. www.memecenter.com https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=0ahUKEwj9oLL_gpHLAhUG8WMKHeilC2wQjhwIBQ&url=https%3A%2F%2Fsciencerocks8.wikispaces.com%2Ffile%2Fview%2FNewton%25E2%2580%2599s%2BThird%2BLaw%2Bof%2BMotion.ppt&bvm=bv.115277099,d.cGc&psig=AFQjCNEmOtKlCgnq0mI01Ifth5Ozo7zZgg&ust=1456424684238220

Newton’s Universal Gravitational Law: gravity is a force of attraction between all matter in the universe

Newton’s Universal Gravitational Law: force of gravity is equal to the gravitational constant (G) multiplied the mass of the two objects (M,m). Divided by the distance between them squared (d2) Directly Proportional: Mass to Fg Indirectly Proportional: Distance to Fg https://www.youtube.com/watch?v=Jk5E-CrE1zg https://www.youtube.com/watch?v=Ah8jt8k3lAE

Forces Fg=GMm F=m*a d2 Which formula should we use to finish our yellow packet?

Egg Drop Worksheet and Write Up Lots of unfinished work Why? Yellow Sheets should have been completed, close to completed by Wednesday/Thursday Leaving only lab reports on Friday Let’s correct your C, E, R’s.

Don’t like your score? Write your lab reports again

Iffat Sardharwalla March 2010 Forces Only the effect of a force can be seen. Forces are measured in (N) They usually act in pairs (1st Law of motion/ Inertia) They always act in certain direction A newton meter is used to measure forces. Iffat Sardharwalla March 2010

Iffat Sardharwalla March 2010 Forces Two things make up a force 1. Size: how strong a push or pull is, and 2. Direction: which way it pushes or pulls. We draw forces as arrows. 1. The length of the arrow shows how strong the force is 2. Direction it points shows the direction of the force. Iffat Sardharwalla March 2010

Balanced and Unbalanced Forces Change the Speed and or Direction of Moving Objects Balanced Forces produce NO change in Movement The forces on the person are balanced The floor pushes upward on the person Gravity pulls downwards on the person Greater Force Smaller Force Iffat Sardharwalla March 2010

Forces & Movement Forces are nearly always PUSHES and PULLS Iffat Sardharwalla March 2010

Forces can make objects do FIVE things 3. Change Direction Like hitting a ball with a bat 2. Slow down Like drag or air resistance Speed up Like kicking a ball 5. Change shape Like stretching, twisting, compressing and bending 4. Turn Like turning a spanner wrench Iffat Sardharwalla March 2010

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http://image. slidesharecdn http://image.slidesharecdn.com/forceandmotionreviewppt-130415110727-phpapp01/95/force-and-motion-review-ppt-20-638.jpg?cb=1366024109

https://www.miniphysics.com/balanced-force.html

http://www.bbc.co.uk/staticarchive/8193d9e630623ecc0eab269bd739ac8a9a57a0e0.gif http://www.bbc.co.uk/staticarchive/20fad0f32ad650e6ffc739df241b0824f264f915.gif

http://physicsprojects. wikispaces http://physicsprojects.wikispaces.com/file/view/doublebubblemapforwiki.png/140219871/doublebubblemapforwiki.png

Update your TOC Work and Simple Machines LT: What is the definition of work? What are simple machines?