Newton's Laws of Motion Flashcards
First law of motion
An object has a constant velocity unless acted on by a net force (Things that want to keep doing what they’re doing)
Second law of motion
Acceleration of an object depends on the mass of the object and the amount of force applied. Force= Mass x Acceleration
Third law of motion
Every force has an equal and opposite reaction force
Acceleration
Any change in velocity
Air resistance
A force that resists an object’s motion through air
Applied force
A type of force exerted by a person, animal or machine
Balanced force
A force with an equal and opposite force acting on the same object
Collision force
A contact force that acts on an object when it hits another object
Contact force
Any force that can only occur when two objects are touching
Displacement
The distance an object is from its starting position. Displacement= Final Distance - Initial Distance
Force
A push or pull
Free body diagram
A representation of all the forces acting on an object
Friction
A force that resists an object’s motion
Gravity
The attractive force between any two objects that have mass
Inertia
The natural tendency of an object to maintain a constant velocity
Mass
The amount of matter in an object
Net force
The overall force on an object
Newton
The standard unit of force
Non-contact force
Any force that can occur even when two objects are not touching
Reaction force
The force that is paired with another force by the third law of motion
Speed
The rate of change of an object’s position. Speed= Distance/Time
Support force
An upward force exerted on an object by a solid surface
Tension
A force that pulls inward when a solid object is stretched
Unbalanced force
A force without an equal and opposite force acting on the same object
