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Take notes from the book and the teacher and try to carefully master new concepts

Significant figures is challenging for example, then when you get mechanics, you are

working in TWO dimensions, or Three dimensions at the same time.

Make sure you understand position, velocity and acceleration well in ONE dimension.

Also make sure you know Newton's Three Laws of motion and the equations of kinematics.

A great understanding of mechanics and physics will help you in Calculus, In physics

you will learn about velocity as

............................................size of change in position

speed = magnitude of velocity = ▬▬▬▬▬▬▬▬▬▬▬▬

.........................................size of .change in time

This client is playing with me

I typed

size of change in position

▬▬▬▬▬▬▬▬

size of change in time

and it cut my words.

In a single direction the absolute value of the velocity is the speed.

Velocity has speed and direction so in ONE direction, velocity can be

positive or negative.

With calculus the size of change of position and the size of the change in time get

REALLY REALLY small and a concept called limit, and a later concept called

derivative is introduced to help you understand this more completely.

If you master motion and position in one dimention, then, working in two or three dimensions is the same, except you have to calculate twice or three times. Moreover, you need to be familiar with trigonometry so you can project vectors onto the x and y direction axes

For example an object moving five miles an hour in the direction 30° East of North, which

can also be called 60° North of East is moving at 5 cos 60° mph = 5√3/2 mph toward East

and simultaneously moving 5 sin 60° toward the North = 2.5 miles per hour toward north

since sin 60° = 1/2.

Learn your metric prefixes and how to SHOW units accurately in calculations.

Science teachers take many points off or fail you for failure to show your units on calculations.