Newton Laws & Free Body Diagrams

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula F = ma, where F is the net force, m is the mass, and a is the acceleration.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It acts parallel to the surfaces in contact and can cause an object to slow down or stop.

Front

How do you calculate net force?

Back

Net force is calculated by vector addition of all the individual forces acting on an object. If forces are in the same direction, they are added; if they are in opposite directions, they are subtracted.

Front

What does it mean for forces to be balanced?

Back

Forces are balanced when the net force acting on an object is zero, resulting in no change in motion. This occurs when all forces acting on the object cancel each other out.

Front

What does kg represent?

Back

Kg (kilogram) is a unit of mass in the International System of Units (SI). It measures the amount of matter in an object.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. 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 Newton's First Law of Motion?

Back

Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by a net external force.

Front

What is Newton's Third Law of Motion?

Back

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

What is the formula for calculating acceleration?

Back

Acceleration can be calculated using the formula a = (F_net) / m, where a is acceleration, F_net is the net force acting on the object, and m is the mass of the object.

Front

What is the role of free body diagrams?

Back

Free body diagrams are used to visually represent the forces acting on an object. They help in analyzing the forces and determining the net force and resulting motion.