Forces and Motion

Front

What is the definition of net force?

Back

The net force is the vector sum of all the forces acting on an object.

Front

What is the net force when forces on an object are balanced?

Back

0 N

Front

State Newton's Second Law of Motion.

Back

F = ma, where F is the net force, m is the mass, and a is the acceleration.

Front

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

Back

Newton (N)

Front

What is the relationship between mass and acceleration according to Newton's Second Law?

Back

Acceleration is directly proportional to the net force and inversely proportional to the mass.

Front

What is inertia?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is a reference point in motion?

Back

A reference point is a stationary object used to determine the position of a moving object.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

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.