II. Find average velocity on a position-- time graph:

Average speed is total distance travelled / total time

III. Interpret a kinematics graph

IV. Finding final or initial velocity of an object accelerating uniformly: when a=0 then initial and final must be equal to each other

V. What is meant by negative velocity or negative acceleration:

You are slowing down or going in the opposite direction

VI. determine net force on an object: kinda like when Fg and Fn cancel out and finding the acceleration that’s left

VII. Newton's laws and forces acting on it:

Refer to the table

VIII. equilibrium and net force: when all forces are cancelled out ===========>

IX. what is tension force:

The tension force is the force which is transmitted through a string or cable when it is pulled tight by forces acting from opposite ends.

X. explain normal force perpendicular to the surface of contact

XI. compare weight on an object that is hung in an elevator while it accelerates up or down: if a=0, the FG is balancing the FN. If there is acceleration, Fnet= FN-FG FN=Fnet+FG , FN>FG

XII. explain static friction force the friction of starting the object to move is greater than the moving friction force

XIII. effects of varying gravitational forces on a simple projectile just projectile motion

XIV. meaning of momentum

Any moving body is said to possess momentum. An object which is at rest has no momentum.

XV. determine the change in momentum

P=mv

XVI. determine the impulse from a force -time graph I=FΔt=Δp

XVII. elastic collision ====>

XVIII. inelastic collision

XIX. gravitational potential