The second object or place is called the ____________.
Reference point
The location of an object in relation to a nearby object or place.
Position
A push or a pull is a ________.
force
______ is a force that pulls objects down to earth.
Gravity
_________ tells you how the position of an object changes during a certain amount of time.
Speed
Change in position
Motion
The speed of an object in a particular direction.
Velocity
A force can change an object’s _______ or _______
Speed, direction
Matter ________ if it speeds up, slows down, or changes direction.
Accelerates
Suppose you walk toward the east. If your speed is 2 m/sec, then your velocity is 2 m/sec, ______.
East
_________ is any change in velocity.
Acceleration
Any change in the speed or direction of an object’s motion is
Acceleration
_________ is a force that acts directly against the direction of motion.
Friction
Acceleration of any kind is caused by _______.
Force
What is the formula for calculating speed