Chapter 8.2 Forces between objects

Question 1

What is Newton’s third law?

Answer 1

Newton’s third law of motion says that. when two objects push or pull against each other, the forces that they feel are equal and opposite. These forces are called action and reaction forces.

Question 2

Wha is the definition of friction?

Answer 2

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

Question 3

Name four types of contact forces.

Answer 3

• Reaction force
• Tension
• Friction
• Air resistance

Question 4

What is the definition of a reaction force?

Answer 4

Reaction force is force acting in the opposite direction.

Question 5

What is the definition of a tension force?

Answer 5

The tension force is directed over the length of the wire and pulls energy equally on the bodies at the ends.

Question 6

what are the forces being exerted when two objects interact?

Answer 6

A force is an interaction between objects, and forces exist in equal-and-opposite pairs. when one object exerts a force on a second object, the second object exerts an equal-and-opposite force on the first object.