Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting opposite to the direction of the applied force.

Front

What is the action force when an archer pulls the bowstring back?

Back

The action force is the force exerted by the archer when pulling the bowstring back.

Front

What is the net force?

Back

The net force is the combination of all the forces acting on an object, determining its motion.

Front

What does Newton's 1st Law state?

Back

Newton's 1st Law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What happens when an unbalanced force acts on an object?

Back

An unbalanced force changes the motion of the object.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the reaction force in the context of Newton's 3rd Law?

Back

The reaction force is the force exerted in the opposite direction to the action force.

Front

How does mass affect the motion of an object according to Newton's 2nd Law?

Back

According to Newton's 2nd Law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Front

What is an example of Newton's 1st Law in everyday life?

Back

A seatbelt stops you from hitting the windshield if you hit the brakes quickly.

Front

What is the formula for calculating net force?

Back

Net force (F_net) = mass (m) × acceleration (a).