SPH3U1 Unit 1 - Kinematics A1-A7

Rules of significant digits

All non-zero digits, zeroes between non-zero digits, and zeroes to the right of a decimal point in a number are significant.

Are zeroes in numbers that don’t have decimal points significant?

It depends how the measured result was rounded.

Vectors

Consists of units, DIRECTION and MAGNITUDE.

Displacement

Change in an object’s position.

Steps to solving (GDFSSSCC)

Givens, directions, formula, substitute, solve, sig digs, convert to vectors, circle answer

Scalars

Consist of unit and magnitude

Uniform motion

Velocity is constant throughout the motion.

Non-uniform motion

Velocity changes during the motion and the slope of the graph changes.

Average velocity

The rate and direction an object changes its position over a period of time

Instantaneous velocity

Rate and direction an object changes its position at a specific moment