Download Unit 7 Vocabulary

Unit 7 Vocabulary and Key Understandings
Speed- distance an object travels in a given amount of time: Speed =
Distance/Time
Velocity- the distance and direction an object is traveling
Acceleration- a change in velocity (speed and/or direction)
Motion- a change in position measured by distance and time
Force- a push or a pull
Unbalanced force- forces that cause a change in an objects motion
Balanced force- forces that cancel each other out
Kinetic energy- energy of motion
Potential energy-energy stored in an object due to the objects position
Direction- the direction or course an object is traveling or is aimed to travel
Distance- how far an object traveled
Displacement- the direction and distance between the starting point and ending
point
Position- the location of an object compared to a reference point
Friction- a force that opposes motion between objects that are touching
Line graph- graph used to represent the relationship between two variables.
Constant speed- to travel at a steady pace not changing the speed of an object.
Relative motion- the motion of an object as compared to another object
Dependent variable- the factor in an experiment that is measured and may change
as a result of changing the independent variable
Independent variable- the factor in an experiment that is changed on purpose
Key Understandings:
Energy can be categorized as potential or kinetic
Unbalanced forces cause changes in an object’s position, speed, and direction
The speed of an object can be calculated, and changes in motion of the object can
be measured and graphically represented.