Motion
Action or process of moving or being moved
Inertia
Tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
Balanced force
Equal forces acting on an object in opposite directions
Mass
Amount of matter in an object
Forces
A push or a pull that causes objects to move, change position or experience tension or compression.
Unbalanced force
When the forces on an object are pushing harder in one direction than in another, causing movement
Velocity
Speed of something in a given direction
Net force
The sum of all forces acting on an object
Acceleration
Rate of change of velocity
Gravity
The downward force on an object
Weight
Amount of gravity pulling down on an object
Newton's first law
An object at rest will stay at rest, an object that is moving will stay moving unless disturbed by an unbalanced force.
Newton's second law
Force is mass times acceleration F = M x A
Newton's third law
For every action there is an equal and opposite reaction
Normal Force
Force acting perpendicular to the contact surface
Gravitational force
The attractive force that exists between all objects with mass
Friction
A force that opposes motion between two surfaces that are in contact
momentum
measurement of how hard it is to stop an object
centripetal force
the circular movement of an object
Terminal Velocity
constant speed of an object reached when the force of gravity is balanced by air resistance
Static Friction
every object at rest has a static bond that you can break
Sliding Friction
sliding an object
Rolling Friction
rolling an object
Fluid Friction
movement of object through water
Air resistance
aire opposing the motion of an object
The amount of gravity on an object depends on.......
The mass to hold it down and the location for more gravitational pull
Force is measured in ....
newtons
mass is measured in......
kilograms
m/s/s measures.....
acceleration
If the force is 50 N and the acceleration is 10 m/s what is the mass?
5 kg
If the mass is 6 kg and the acceleration 3 m/s, what is the force?
18 N
If the force is 30 N and the mass is 2 kg, what is the acceleration?
15 m/s/s
How does mass effect acceleration?
The more mass, the harder it is to get the object to accelerate. For example, it is harder to accelerate a boulder than a rock because a boulder is heavier.