Newton's First Law
the law of inertia.
A force is when you push or a pull an object to try to change the object's acceleration.
For every action, there is an equal and opposite reaction
What does friction mean?
Friction is a force which results from surfaces rubbing against one another.
Force is measured in a unit called a Newton in honor of Isaac Newton.
What are semicircle canals?
Three fluid-filled channels in the inner ear.
When an object is acted on by an outside force, the strength of that force is equal to the mass of the object multiplied by the resulting acceleration.
Inertia means what?
A term that is used to describe the fact that you must apply a force on an object to get it to change its velocity.
Example: When you slide a hockey puck, it will eventually stop because of the friction on the ice.
What is Newton's first law?
The velocity of an object will not change unless the object is acted on by an outside force. If an object is at rest, it will stay at rest until a force causes it to move. In the same way, it means that an object in motion will continue in motion at its current velocity until a force causes its velocity to change.
Kinetic friction: Friction between moving surfaces.
Static friction: Friction between surfaces at rest. Static friction is always greater than kinetic friction.
Answers Vary
Example: (second law) If you use the same force to push a truck and a car, the car will move further because it has less mass.
(third law): When air rushes out of a balloon, the opposite reaction is that the balloon flies up.