front 1 air resistance | back 1 the friction between an object and particles in the air |
front 2 average speed | back 2 determined by dividing the trip distance by the total time of the trip |
front 3 balanced forces | back 3 exist when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction |
front 4 contact force | back 4 a push or pull that touches or comes in contact with an object to change motion |
front 5 direction | back 5 the path along which something moves, lies, or points |
front 6 distance | back 6 a measurement of how far from each other two points or places are |
front 7 force | back 7 is a push or a pull on something |
front 8 friction | back 8 a force that acts on an object when it rubs against another object or material |
front 9 graph | back 9 is a representation of data plotted on an x-axis and y-axis |
front 10 gravity | back 10 a force where on object pulls on another object |
front 11 instantaneous speed | back 11 how fast an object moves at a certain point in time |
front 12 load | back 12 the object to be moved by the simple machine |
front 13 mass | back 13 the measure of the amount of matter in an object |
front 14 motion | back 14 the changing of position of an object |
front 15 Newton | back 15 a metric unit used to measure the force applied to objects |
front 16 non-contact force | back 16 a push or a pull that does not touch an object to change motion |
front 17 point of reference | back 17 a background or non-moving object in the background used in describing the motion of another object |
front 18 speed | back 18 the measurement of how fast an object travels from one point to another |
front 19 spring scale | back 19 is used to measure the approximate weight, or the pull of gravity on an object |
front 20 time | back 20 the measurement of the period between events |
front 21 unbalanced forces | back 21 exist when all the forces acting on an object result in a change of motion of the object |
front 22 variables | back 22 the properties of things that can change, be changed, or vary in an investigation |
front 23 weight | back 23 the measure of the amount of gravity pulling on an object |