**Mechanics **

**Measurement**

Fundamental quantities and derived quantities

Conversion of units

Significant digits of numbers

**Motion in One Dimension**

Position, velocity, and acceleration

Motion diagrams

**Motion in Two Dimensions**

Position, displacement, velocity, and acceleration

**Projectile Motion**

The trajectory of a projectile as combination of horizontal motion with constant velocity

and vertical motion with constant acceleration

A body projected horizontally

Height and range of a projectile

**The Laws of Motion**

The concept of force

Newton’s first law

Newton’s second law

Newton’s third law

Forces of friction

Free-body diagram

**Energy of a System**

Work done by a constant force

Kinetic energy

Kinetic energy and the work–kinetic energy theorem

Potential energy of a system

Conservative and non-conservative forces

Relationship between conservative forces and potential energy

Mechanical energy of a system

Changes in mechanical energy for conservative and nonconservative forces

Mechanical energy of a block–spring system

**Electromagnetism**

**Current and Resistance**

Electric current

Resistance

Ohm’s law

Electromotive force

Resistors in series and parallel

Equivalent resistance in simple circuits

Electric power