Forces Review

Front

What is gravitational force?

Back

Gravitational force is the attraction between two masses. It depends on the masses of the objects and the distance between them.

Front

Which diagram shows the least gravitational force?

Back

Diagram IV shows the least gravitational force.

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 a net external force.

Front

What is inertia?

Back

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

Front

What is the relationship between force and acceleration?

Back

Acceleration is directly related to force; as force increases, acceleration increases, provided mass remains constant.

Front

What is a normal force?

Back

A normal force acts perpendicular to a contact surface and supports the weight of an object resting on that surface.

Front

What is net force?

Back

Net force is the total force acting on an object, taking into account all the individual forces and their directions.

Front

What does Newton's 2nd Law state?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is friction?

Back

Friction is a force that opposes the motion of an object and acts parallel to the surfaces in contact.

Front

What is the difference between static and kinetic friction?

Back

Static friction prevents motion between two surfaces at rest, while kinetic friction acts on moving surfaces.