MechanicsLaajuus (3 ECTS)

Objective

On completion of the course the student will have adequate knowledge of the SI system for future studies. The student will be familiar with the units and definitions of work, energy and power. The student will understand the relationships between acceleration, velocity and position in linear and circular motion. The student will be able to form and solve equations of motion in a two-dimensional problem of power. The student will be familiar with the principle of energy, principle of work and energy as well as the principles of conservation in both linear and circular motion.

Content

The SI system. Base and derive units. Conversions from other unit systems to the SI system.
Acceleration, velocity and position. Equations and graphs as functions of time in one- and two-dimensional problems.
Newton’s laws. Forming and solving equations of motion. The principle of energy and the principle of work and energy. Work and power. Statics.
Circular motion. The relationship between angular and linear quantities. Centripetal acceleration and centripetal force.
The dynamics of rigid bodies. The moment of inertia, the basic equation of dynamics. The principle of energy in circular motion.
Impulse and momentum. The conservation of momentum. Circular momentum.

Assessment criteria, satisfactory (1)

The student is able to calculate quantities of kinematics and dynamics in one-dimensional problems. The student recognizes units related to mechanics and knows the differences of force, energy and power at the level of units and equations.

Assessment criteria, good (3)

The student understands the vector character of quantities in kinematics and dynamics. The student is able to conceive the motion of a body on the basis of an acceleration, velocity or transition graph. The student understands that a steady circular motion is accelerating motion. The student is familiar with Newton’s laws and is able to solve related verbal problems. The student knows the connections between linear and circular motion in kinematics and dynamics. The student knows the laws of conservation and understands the meaning of them. The student understands the difference between momentum and energy.

Assessment criteria, excellent (5)

Excellent

The student is able to form and solve the equations of motion of a given problem related to level force. The student recognizes the limitations and simplifications related to the formulas used. The student is familiar with conservation laws as well as the principle of work and energy in linear and circular motion.