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What is the effect of a net force on an object?
It causes the object to accelerate in the direction of the net force.
What happens when two objects interact according to Newton's Third Law?
Each object exerts a force on the other that is equal in magnitude and opposite in direction.
What is the effect of electromagnetic forces on charged particles?
They cause charged particles to experience forces, leading to attraction or repulsion.
In a free-body diagram, what does the length of the arrow represent?
The magnitude of the force.
In a free-body diagram, what does the arrowhead indicate?
The direction of the force.
What is a force?
An interaction between objects that can cause a change in motion.
What is a vector quantity?
A quantity with both magnitude and direction.
What is Newton's Third Law?
For every action, there is an equal and opposite reaction.
What is an inertial reference frame?
A frame in which an object at rest stays at rest, and an object in motion stays in motion with constant velocity unless acted upon by a force.
Define electromagnetic force.
A fundamental force arising from the interaction of electrically charged particles.
What is the unit of force?
Newtons (N).