Forces practice test questions

Front

What is a free body diagram?

Back

A graphical representation used to visualize the forces acting on an object.

Front

What does it mean for an object to be in equilibrium?

Back

It means that all the forces acting on the object are balanced, resulting in no net force and no acceleration.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the object's mass.

Front

How does mass affect gravitational force?

Back

Gravitational force increases with mass; as mass decreases, gravitational force also decreases.

Front

What is the formula for calculating gravitational force?

Back

F = m * g, where F is the gravitational force, m is the mass, and g is the acceleration due to gravity.

Front

What is the difference between static and dynamic equilibrium?

Back

Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object moves at a constant velocity.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surface of contact.

Front

What is the net force?

Back

The net force is the vector sum of all the forces acting on an object, determining its acceleration.

Front

What is Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is Newton's second law of motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).