Uniformly Accelertated Linear Motion Model: Force 1

Physics 1: Section 3.3

What is force?

An influence from a systems surroundings that changes its velocity

What is the symbol and SI unit for force?

F subscript and newton

What is the right question to ask and how is it answered?

What changes motion? It is because of Newtons second law of motion

What is Newtons second law of motion?

Acceleration is directly proportional to the magnitude of the net force

What is the equation for Newtons second law of motion?`

a_x ∝ F_{net, x}

What does net force cause?

Acceleration

Acceleration is inversely proportional to what?

The mass

What is the equation that shows acceleration is inversely proportional to the mass?

a_x ∝ 1/m

What equation do you get when you combine the magnitude of the net force and proportional to the mass?

a_x = F_net,x / m

What is Newtons second law generally expressed as?

F_net,x = ma_x

How can acceleration be found?

From either kinematics or dynamics, depending on which unknows