All Flashcards
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.
What are the general steps to solve a problem using forces?
- Draw a Free-Body Diagram (FBD). 2. Identify all forces acting on the object. 3. Calculate the net force. 4. Apply Newton's Second Law () to find acceleration.
How do you determine the resultant force when multiple forces are acting on an object?
- Represent each force as a vector. 2. Add the force vectors together, considering both magnitude and direction. 3. The resulting vector is the resultant force.
What is a vector?
A quantity with both magnitude (size) and direction.
What is a force?
A push or pull; a vector with magnitude and direction.
What is a Free-Body Diagram (FBD)?
A diagram showing all the external forces acting on an object.
What is the magnitude of a force?
The strength or size of the force.
Define 'Resultant Force'.
The sum of all force vectors acting on an object.
What are action-reaction pairs?
A pair of equal and opposite forces resulting from the interaction between two objects, as described by Newton's Third Law.