Forces Review

Front

What is the definition of net force?

Back

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

Front

How do you calculate net force when multiple forces are acting in the same direction?

Back

To calculate net force when multiple forces are acting in the same direction, you add the magnitudes of the forces together.

Front

What is the formula for calculating net force?

Back

The formula for calculating net force is F_net = m * a, where F_net is the net force, m is mass, and a is acceleration.

Front

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

Back

The unit of force in the SI system is the Newton (N).

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force acting on an object is directly proportional to its mass.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, acting in the opposite direction to the applied force.

Front

How does acceleration relate to net force and mass?

Back

Acceleration is directly proportional to net force and inversely proportional to mass, as described by Newton's second law (F = m * a).

Front

What factors affect the force of gravity acting on an object?

Back

The force of gravity acting on an object depends on the object's mass and the distance from the center of the Earth (or other celestial body).

Front

What is the significance of a net force of 0 N?

Back

A net force of 0 N indicates that an object is in equilibrium, meaning it is either at rest or moving at a constant velocity.

Front

What happens to an object's motion if the net force acting on it is not zero?

Back

If the net force acting on an object is not zero, the object will accelerate in the direction of the net force.