AP Physics 1 Semester Exam REVIEW

Front

What is tension in a string?

Back

Tension is the force exerted along the length of a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

Define the components of a force vector.

Back

A force vector can be broken down into horizontal (x) and vertical (y) components, which can be calculated using trigonometric functions based on the angle of the force.

Front

What is the relationship between frictional force (Ff) and tension (FT) in a system?

Back

Ff is the force that opposes the motion of an object, while FT is the force exerted by a string or rope. The relationship can vary based on the system's dynamics.

Front

How do you calculate acceleration (a) using Newton's second law?

Back

Acceleration can be calculated using the formula a = F/m, where F is the net force acting on an object and m is its mass.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other, typically represented as f_k = μ_k * N, where μ_k is the coefficient of kinetic friction and N is the normal force.

Front

Explain the concept of a frictionless surface.

Back

A frictionless surface is an idealized surface where no frictional force acts on an object, allowing it to move without resistance.

Front

What is the significance of the angle of incline (θ) in physics problems?

Back

The angle of incline affects the components of gravitational force acting on an object on the incline, influencing acceleration and friction.

Front

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

Back

The net force is determined by vectorially adding all the forces acting on an object, taking into account their directions.

Front

What is the formula for gravitational force (Fg)?

Back

Fg = m * g, where m is the mass of the object and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

Front

Define acceleration due to gravity (g).

Back

Acceleration due to gravity is the acceleration experienced by an object due to the gravitational pull of the Earth, approximately 9.81 m/s².