topic 3 - newtons first law

what does newtons first law state?

a body at rest will remain a body at rest and a body in motion will remain a body in motion unless acted upon by a resultant force

what does newtons first law focus on?

balanced forces

what is newtons first law the law of?

the law of inertia

what is inertia?

resistance to a change in motion

what is inertia determined by?

the mass of an object

the larger the mass, the larger the…

inertia meaning that the velocity is harder to change

what is resultant force?

the difference between forces acting upon an object

if the resultant force on a stationary object is zero, then the object will…

remain stationary because it needs a resultant force to move

if the resultant force on a moving object is zero, then the object will

remain moving at the same velocity 

if there is a resultant force that is not zero, then the object will…

accelerate or decelerate in the direction of the force