Forces Review

Front

What is the coefficient of static friction?

Back

The coefficient of static friction is a dimensionless value that represents the ratio of the maximum static frictional force between two surfaces to the normal force pressing them together.

Front

How do you calculate the coefficient of static friction?

Back

Coefficient of static friction (μs) = Force of static friction (Fs) / Normal force (N).

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object. It determines the object's acceleration according to Newton's second law.

Front

What is Newton's second law of motion?

Back

Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is the relationship between action and reaction forces?

Back

According to Newton's third law, for every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

What is kinetic friction?

Back

Kinetic friction is the frictional force that opposes the motion of two surfaces sliding past each other.

Front

What is static friction?

Back

Static friction is the frictional force that prevents two surfaces from sliding past each other when a force is applied.

Front

What is the formula to find the horizontal component of a force?

Back

Horizontal component (Fx) = F * cos(θ), where F is the force and θ is the angle above the horizontal.

Front

What is the formula to find the vertical component of a force?

Back

Vertical component (Fy) = F * sin(θ), where F is the force and θ is the angle above the horizontal.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects at rest and prevents motion, while kinetic friction acts on moving objects and opposes their motion.