Vocabulary Words
is the distance and direction of the object’s change in position.
Displacement
Is all motion obvious?
no
What is the formula for Calculating Speed?
Speed= distance/time
A push or pull
Force
If an object is speeding up
positive acceleration
is a change in an object's position relative to a reference point.
Motion
occurs when an object changes its position.
motion
What is instantaneous speed?
The speed at a given point in time.
Forces that are equal in size and opposite in direction
Balanced Forces
If an object is slowing down
negative acceleration
is the distance an object travels per unit of time.
Speed
needed to be determine the position of an object
reference point
What is average speed?
speed of motion when speeding is changing.
When forces are in the same direction the forces are added together.
Unbalanced forces
States rules that describe the effects of forces on the motion of object
Sir Issac Newton
of an object is the product of its mass and velocity.
Momentum
any change over time
rate
If an object neither slow down or speeds up, it is said to travel at
constant speed
True or False
A force can cause the motion of an object to change, but force does not always change velocity
true
an object moving at a constant velocity keeps moving at that velocity unless an unbalanced net force acts on it; called the law of inertia
Newton's 1st law of motion
acceleration toward the center of a curved or circular path.
Centripetal Acceleration
The tendency of an object to resist any change in its motion
Inertia
Displacement must always indicate
direction
True or False
The velocity of an object remains constant unless a force changes it.
true
the rate of change of velocity
acceleration