Newton's Laws
An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force.
Newton's First Law
How fast an object is traveling
Speed
The definition of force
A push or a pull that changes an objects motion/position
What is the formula for speed?
distance รท time
Define motion
A change in the position of an object with reference to a point and time
Speed of an object in a certain direction
Velocity
If an equal force acts on a pencil and a text books, which one will have GREATER acceleration?
Why?
Pencil - less mass = greater acceleration
If I traveled 100 miles in 2 hours, what was my velocity?
not enough information - velocity os a vector and there is no direction
What is translatory motion?
movement of an object from one point to another
Attraction between all matter
Gravity
What is net force?
The overall force acting on an object when all forces are added together
If I am slowing down in the car, is that acceleration?
Why/Why not?
YES - you change your speed.
What is oscillatory motion?
Back and forth motion about a mean (average position).
The rate at which velocity (direction or speed) changes over time
Acceleration
Name 4 types of forces - be specific (not push or pull)
friction
air resistance
gravitational
magnetic
Turning a corner is an example of acceleration. True or False
Why?
True - You change direction and speed when you turn, which is the definition of acceleration
What kind of motion goes in a circular path around a fixed point?
Rotatory motion
An objects ability to stay at rest or stay in motion.
Inertia
Name 4 types of friction
fluid, rolling, sliding and static
Acceleration is the rate at which inertia changes over time. True or False?
FALSE - Acceleration is the rate at which VELOCITY changes over time.
What is motion along a curved path called?
curvilinear motion