Unit Review --- Forces

Front

What is the formula to calculate force?

Back

Force (F) = Mass (m) × Acceleration (a)

Front

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

Back

Newton (N)

Front

What does it mean when forces are balanced?

Back

Balanced forces do not change the state of motion of an object.

Front

What happens to an object when unbalanced forces act on it?

Back

The object begins moving in the direction of the net force.

Front

What is the weight force acting on an object?

Back

Weight force is the force due to gravity acting on an object, calculated as Weight (W) = Mass (m) × Gravitational acceleration (g).

Front

What is normal force?

Back

Normal force is the support force exerted upon an object that is in contact with a stable surface.

Front

What is frictional force?

Back

Frictional force is the force that opposes the relative motion of two surfaces in contact.

Front

What is tension force?

Back

Tension force is the force transmitted through a string, rope, or wire when it is pulled tight by forces acting from opposite ends.

Front

How do you calculate the net force acting on an object?

Back

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

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

Acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass.