Review Science Term 4

From the picture above, find out how much is the distance and displacement from A to C, state your reason!

Explain this free body diagram!

What is the net force! shows how you get the answer!

Based on the picture above, explain what makes velocity and speed different!

How much time will it take for a bug to travel 5 meters across the tree branch if it is traveling at 1 m/s? (use speed formula)

Note:

- use velocity formula, shows how the calculation done in the answer box

- remember that you are looking for velocity not speed.

Explain what happen with the ball using Newton's first Law of Motion : "If a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force."

Compare and contrast two situation in this picture! explain what happen using Newton's Second Law of Motion : "the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass."

Analyze the picture above using Third Newton's Law of motion concept: "If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A."

Two people were pushing a very large and heavy 125 kg teakwood table. One of them applied 40 N of force and the other 60 N Force. It is a bit hard to push because the floor give out 50 N friction force which also in return gives out acceleration when the table is being pushed.

a. What is the net force, if normal force is 1225 N!

b. Based on the information above find out the acceleration of the table!

c. Find out the acceleration if two people combined force is 150 N and friction force is 30 N and table’s mass is 80 Kg!

d. Compare and contrast the acceleration result on part ‘b’ and ‘c’

e. Using the data you get from comparing on part ‘d’ and 2^nd Newton’s Law of Motion, analyze the relationship between force, mass and acceleration!