Slide 2

Inertia is the tendency of objects to resist from being moved. If the object
is moving already, inertia inertia is the the resistance an object has to
change speed or direction until an outside force acts on the object.

Terms:	Definitions	Equations

acceleration	Acceleration is the rate that velocity changes over time. An objects acceleration will change if the speed and the direction both change.	a=(delta)v/t where a=acceleration (delta)v=change in velocity t=time

gravity	Gravity is the attraction of two objects because of their masses.	g=9.81 where g=gravity

velocity	Velocity is the speed of an object in any direction.	V=(delta)d/t where v=velocity (delta)d=change in position t=time

torque	Torque is the force that is considered to cause the rotation of an object.	T=Fd T=torque F=force d= distance perpendicular of the force of the axis of rotation

rotational Inertia	Inertia is the tendency of objects to resist from being moved. If the object is moving already, inertia inertia is the the resistance an object has to change speed or direction until an outside force acts on the object.	I=cm(r^2) I=inertia c=a shape constant m=mass r=radius

center of gravity	The position of a body, or a system, which is considered to be where the mass is concentrated. The place were something is balanced.	cm=sum of positions/ number of positions

friction	Friction is the force between two objects when they rub together	f=mn f=frictional force m=coefficient n=normal force

Newton's second law	Newton's second law states that the change of momentum is proportional to the imposed force that goes in the same direction of the force. Simply speaking, force is equal to mass times acceleration.	F=ma where f=force, m=mass, a = acceleration

angular velocity	The rate of which the angular displacement changes with respect to time.	w=v/r w=angular velocity v=velocity r=radius

angular momentum	Simply speaking, angular momentum is the quantity of the rotation of an object, which is produced from it's moment of inertia and it's angular velocity.	L=Iw L= angluar momentum I=inertia w=angular velocity

power	Power is that quantity that measure the rate that work is done, or the rate of which energy is transformed.	p=w/t p=power w=work t=time

work	Work is the transfer of energy to a body by the application of a force. This causes the body to move in the same direction as the force.	w=fd w=work f=force d=distance

Newton's Third Law	The rule that states for every action, there is an equal but opposite reaction.	the sum of the forces equal zero

Newton's first law	Newton's first law states that an object in motion will stay in motion unless it is acted upon by another outside force.	none