Forces and Newton's Laws of Motion

Front

What does Newton's Second Law state about the relationship between force, mass, and acceleration?

Back

Newton's Second Law states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Front

How do you calculate net force when multiple forces are acting on an object?

Back

Net force is calculated by vectorially adding all the forces acting on an object. If forces are in opposite directions, they are subtracted.

Front

What is the definition of balanced forces?

Back

Balanced forces are two or more forces acting on an object that cancel each other out, resulting in a net force of 0 N.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate in the direction of the net force.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force is the Newton (N).

Front

How does surface area affect air resistance?

Back

Larger surface area increases air resistance.

Front

What is inertia and how does it relate to Newton's First Law?

Back

Inertia is the tendency of an object to resist changes in its state of motion. Newton's First 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 the formula for calculating weight?

Back

Weight is calculated using the formula: Weight = mass × gravitational acceleration (W = mg).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms (kg), while weight is the force exerted by gravity on that mass, measured in Newtons (N).

Front

What happens to the net force when two equal forces act in opposite directions?

Back

The net force is 0 N when two equal forces act in opposite directions.