What is the effect of increasing the net force on an object?
The object's acceleration increases proportionally (Newton's Second Law).
What happens when the net force on an object is zero?
The object is in equilibrium (either at rest or moving with constant velocity).
What is the effect of increasing the angle of an inclined plane on the component of weight acting parallel to the plane?
The component of weight acting parallel to the plane increases, potentially increasing the object's acceleration down the plane.
What happens when an object exerts a force on another object?
The second object exerts an equal and opposite force back on the first object (Newton's Third Law).
What is the effect of increasing the coefficient of friction between two surfaces?
The frictional force between the surfaces increases, opposing motion more strongly.
According to Newton's Second Law, what is the effect of applying a net force on an object?
The object accelerates in the direction of the net force. The acceleration is directly proportional to the net force and inversely proportional to the mass ($F = ma$).
What is the effect of the Earth pulling on you?
You pull on the Earth (equal and opposite force).
What are the steps to create a Free-Body Diagram?
1. Represent the object as a dot or box. 2. Draw vectors representing all external forces acting *on* the object. 3. Label each force vector.
How do you determine the resultant force?
1. Identify all forces acting on the object. 2. Resolve forces into components (if necessary). 3. Add force vectors using vector addition.
Describe how to solve a problem using Newton's Second Law.
1. Draw a free-body diagram. 2. Determine the net force acting on the object. 3. Apply the equation $F = ma$ to find the acceleration.
What are the steps to calculate acceleration given force and mass?
1. Identify the net force (F) acting on the object. 2. Identify the mass (m) of the object. 3. Use Newton's Second Law, $a = F/m$, to calculate the acceleration.
How to apply Newton's Third Law to identify force pairs?
1. Identify an action force exerted by object A on object B. 2. Identify the reaction force exerted by object B on object A. 3. Confirm the forces are equal in magnitude and opposite in direction.
