Laws of Motion Notes - Home - Mount Gilead School District



Laws of Motion and Energy Notes

Sir Isaac Newton

• 1. Described 3 laws that relate forces to motion

• 2. _____________-a push or a pull, all forces have size and direction

Vocabulary

• 1. _____________- a force that opposes motion between 2 objects that are touching

• 2. Inertia-tendency of all objects to stay at _________ or in _________

• 3. _____________- the amount of matter an object is made of

Newtown’s 1st Law of Motion

“Law of Inertia”

• An object at _____________remains at ___________ and an object in _____________ remains in _____________ at constant speed and in a straight line unless acted on by an unbalanced force

Examples of Newton’s 1st Law of Motion

• 1. Car suddenly ___________ and you strain against the __________

• 2. Car turns ___________ and you appear to slide to the ________

• 3. The difficulty of pushing a car that won’t __________

Newton’s Second Law of Motion

• The _______________ of an object depends on the _______ of the object and the amount of the ___________ applied

• 1. Force = mass x acceleration F=m x a

• 2. Force- a ____________ or ___________, all forces have size and direction

• 3. _____________- the amount of _____________ an object is made of

• 4. ____________________-the rate at which velocity changes; and object accelerates if it speed changes, if it’s direction changes and if both speed and direction changes

Examples of Newton’s 2nd Law

• 1. Hitting a softball, the harder the hit, the faster the ball goes

• 2. Football players and their positions

• 3. Loaded versus an unloaded truck

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Newton’s Third Law of Motion

• 1. For every ____________, there is an ___________and opposite ___________

• 2. Action and Reaction

Examples of Newton’s 3rd Law

• 1. 2 cars hit head on

• 2. Jumping out of a boat onto a dock

• 3. Astronauts in space

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