*AP Physics 1 Sem1 Finals Review*

Front

What is the formula for calculating gravitational force?

Back

F = m * g, where F is the gravitational force, m is the mass, and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth).

Front

Define 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 (F = ma).

Front

What is the principle of conservation of energy?

Back

The total energy in a closed system remains constant; energy can neither be created nor destroyed, only transformed from one form to another.

Front

Explain the concept of normal force.

Back

Normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

What is centripetal force?

Back

Centripetal force is the net force causing the inward acceleration of an object moving in a circular path, directed towards the center of the circle.

Front

How do you calculate the work done by a force?

Back

Work (W) is calculated as W = F * d * cos(θ), where F is the force applied, d is the displacement, and θ is the angle between the force and displacement direction.

Front

What is kinetic energy and its formula?

Back

Kinetic energy (KE) is the energy of an object due to its motion, calculated as KE = 1/2 * m * v², where m is mass and v is velocity.

Front

Define potential energy and its formula.

Back

Potential energy (PE) is the energy stored in an object due to its position or configuration, commonly gravitational potential energy given by PE = m * g * h.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as W = m * g. Mass is a measure of the amount of matter in an object, independent of gravity.

Front

Explain the concept of friction.

Back

Friction is the force that opposes the relative motion of two surfaces in contact. It can be static (preventing motion) or kinetic (opposing motion).