click below
click below
Normal Size Small Size show me how
Newton Three Laws of
Newton's 1st, 2nd and 3rd law of Motion
Question | Answer |
---|---|
The First Law of motion is also called what? | The Law of Inertia |
Inertia depends on what? | Mass |
What are two forces on Earth that are almost always present? | Gravity and Friction |
What is Inertia? | A resistance to a change in motion |
What kind of forces cause an object to move? | Unbalanced Forces |
What is the greatest velocity a falling object reaches? | Terminal Velocity |
What causes you to move forward when your car suddenly stops? | inertia |
What is friction? | A force that works against motion by slowing down an object |
Sliding friction | occurs when two solid surfaces slide over eachother |
Rolling friction | occurs when a object rolls over a surface. |
Fluid friction | when an object moves through a liquid or gas |
First Law of Motion states: | an object at rest will remain at rest and an object in motion will remain in motion at constant velocity unless an unbalanced force acts upon it. |
Second Law of Motion is written... | force= mass x acceleration |
Free fall (concept) | falling solely due to the pull of gravity |
Projectile motion | when any object is thrown in the air and gravity and air resistance are the only forces acting on it |
Gravity | force that pulls things toward the center of the Earth |
Newton's Law of Universal Gravitation | all objects in the universe attract each other by the force of gravity. |