the moment when two objects hit each other

a result or change that happens because of an event or process

the same in quantity, size, degree, or value

to apply a force

a push or a pull that can change the motion of an object

a force between an object and the surface it is moving over

to reach a conclusion using evidence and reasoning

the energy that an object has because it is moving

the amount of matter that makes up an object

anything that has mass and takes up space

acting or going in the reverse direction

a self-contained unit on an aircraft, spacecraft, vehicle, or vessel that can be detached for a particular function

how fast an object is moving

speed in a particular direction