Physical science

motion

• The state in which one object's distance from another is changing

• 1. When objects remain at a constant distance from each other

• 1. In a state of unchanging distances between objects

• 1. Objects maintaining a fixed separation from each other

Answer explanation

reference point

• A place or object used for comparison to determine if an object is in motion

• A place or object used for comparison to determine if an object isn't in motion

• A moving object used for comparison to determine if an object is in motion

• A place or object used for comparison to determine if an object is in negatively accelerating

force

• A push or pull exerted on an object

• The object's weight

• The object's material

• A change in temperature

newton

• A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second

• A unit of measure equal to the speed of a 1 kilogram object moving 1 meter per minute

• A unit of measure representing the weight of a 1 kilogram object

• A unit of measure equal to the kilograms of an object traveling 1 meter every second

friction

• The force that two surfaces exert on each other when they rub against each other

• A force caused by the roughness of the surfaces pushing against each other

• A force generated by the heat created when surfaces rub together

• A force that always slows down or stops objects in motion

gravity

• The attractive force between objects; the force that moves objects downhill

• The force that pushes objects away from each other; the force that makes a hot air balloon fly.

• The force that keeps objects spinning in their orbits; the force that makes a ball bounce.

• The force that creates tides in the ocean; the force that makes a feather fall slower than a rock.

net force

• The overall force on an object when all the individual forces acting on it are added together.

• The speed of an object after all its individual movements are combined

• The material an object is made of when all its components are considered

• The distance an object travels after all its individual displacements are added

relative

• When one variable is dependent on another variable

• When one variable controls another variable

• When one variable mirrors another variable

• When one variable dictates another variable

speed

• The distance an object travels per unit of time

• The distance an object travels per unit of time

• The time it takes for an object to reach a certain distance

• The mass of an object compared to the distance it travels

slope

• The steepness of a graph line; the ratio of the vertical change (the rise) to the horizontal change (the run)

• The steepness of a graph line; the ratio of the vertical change (the run) to the horizontal change (the rise)

• The steepness of a graph line; the ratio of the vertical change to the horizontal change (upward, downward, horizontal)

• The steepness of a graph line; the ratio of the horizontal change (the rise) to the vertical change (the run)