Calculating Net Force
Potential vs Kinetic
Terms & Definitions
Random
About the Teacher
100
When the force arrows go in opposite directions you should ___________ to calculate net force.
Subtract
100
What is the difference between Kinetic Energy and Potential Energy?
Objects only have Kinetic Energy when they are moving.
100
Force
A push or a pull exerted on an object.
100
What do we call a piece of land entirely surrounded by water?
Island
100
How many years have I been at Harborside?
This is my 2nd year
200
Tom pushes a couch to the left with 12 N of force. John pushes the couch to the right with 7 N of force.
Calculate the net force.
12N - 7N = 5N
200
A car at the top of a hill will have which type of energy, potential or kinetic?
Potential
200
Damage
A change in shape or function of an object.
200
What is the coldest place on earth?
Antarctica
200
What is my favorite color?
Yellow
300
Tom and Sam both go to push a door open at the same time. Tom pushes with 30N of force and Sam pushes with 30N of force.
Calculate the net force and decide if it is balanced.
30 - 30 = 0N
Balanced
300
What type of energy does the biker in position 2 have? Explain your choice.
Kinetic - the biker is riding down the hill.
300
Deformation
The action or process of changing shape through the application of pressure.
300
What process turns a caterpillar into a butterfly?
Metamorphosis
300
What is my favorite number?
9
400
You and two other people are pushing a couch to the right. You are pushing with 10N, Jen is pushing with 7N and Rob is pushing with 7N.
What is the net force?
10+7+7 = 24 Newtons
400
True or False: An object with MORE mass will have a HIGHER kinetic energy.
True
400
Contact Force
A force that occurs when two objects come in contact.
400
Which state borders only one other state?
Maine
400
How many years of school did I complete after high school?
6 years (4 college + 2 graduate school)
500
A book is pushing down on a table with 15N of force. The book is NOT moving. How many newtons of force is the table pushing up with?
15N - the book is not moving
500
Before two objects collide Object 1 is moving to the right. Object 2 is stationary. What type of energy does each object have?
Object 1 - Kinetic
Object 2 - Potential
500
Newton's 1st Law
An object in motion will stay in motion unless acted on by an outside force.
500
What common substance has the chemical formula NaCl?
Salt
500
How are are my three siblings?
30,20,18
600
Jack, John and Jane are pulling on a rope to the left. Jack and Jane are each pulling with 15N of force. John is pulling with 20N of force.
Evan and Emily are pulling to the right. Evan is pulling with 17N of force and Emily is pulling with 20N of force.
Calculate the Net Force.
Jack, John, Jane (15+15+20 = 50N)
Evan and Emily (17+20 = 37N)
Net force: 50-37 = 13N
600
Which object has higher potential and kinetic energy:
1. Mass of 35 lbs moving at 20 mph
2. Mass of 45 lbs moving at 20 mph
Object 2
600
Newton's 2nd Law
Force equals mass multiplied by acceleration.
600
What is our state bird?
Robin
600
What is my favorite type of steak?
6