Which of the following could be an example of balanced forces acting on an object (net force $F_{\mathrm{net}}=0$)?

In the context of types of forces and free-body diagrams, which of the following is NOT a force?

In the context of types of forces and free-body diagrams, what two aspects of a force do scientists measure?

In the context of types of forces and free-body diagrams, which of the following is a good example of a contact force?

Which of the following situations is an example of an unbalanced force acting on an object?

In the context of types of forces and free-body diagrams, which statement best describes a force?

In the context of types of forces used in free-body diagrams, which of the following is an example of a non-contact force?

In the context of forces and free-body diagrams, which of the following is a noncontact force?

In a free-body diagram for a block sliding to the right on a horizontal surface, how does kinetic friction affect the block's motion when no other horizontal forces act on it?