science 8th grade p:3

collide

to strike or got something with any amount of force

force

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

interacting objects

objects that affect one another

motion

The change in an object’s position with respect time and in comparison with the position of other objects used as a reference point

Newton, N

unit of measurement for force

Newton’s law of Action Reaction

For every action force there is an equal and opposite reaction force

spring scale

A tool that measures a pulling force by the tension on a spring in units of newtons

Newtons First Law of Motion

An object in motion remains in motion and an object at rest remains at rest unless acted by an unbalanced force

Newtons third law of motion

for every action there is an equal and opposite re-action

balanced forces

when two or more forces acting on an object are equal in all directions- results in no change in motion.

unbalanced forces

when two or more unequal forces act on an object- moves in direction with more force.

contact forces

forces experienced by bodies when they are in physical contact with each other.

non contact forces

forces experience by bodies even if they are not physical contact with each other

inertia

tendency of an object to resist change in motion. Remains unchanged.

at a distance force

A push or pull that acts on an object without touching it.

system

a group of related parts that make up a whole

which one of Newtons laws is known as the law of inertia

newtons first law of motion

what law states that for every action there is an equal and opposite reaction

newtons third law of motion

what is to strike or hit something with any amount of force

collide

what are action/ reaction forces that occur between objects that are touching

contact forces

what type of forces do not cause a change in motion

balanced force

what is the unit of measurement for force

Newton