Vocabulary Words
Forces
Newton's Law Examples
PE and KE
100
What is the definition of Force?
A push or pull
100
What is Net Force?
The combination of all forces acting on an object.
100
What law is this?
A skateboarder hits a rock and is thrown over it onto the ground.
First Law because an object in motion will stay in motion until another force acts upon it.
100
What is the definition of Potential Energy?
An object is at rest
200
What is the definition of Speed?
Distance divided by time
200
What is an unbalanced force?
Forces that do not cancel each other out and can cause a change in the objects speed or direction.
200
What law is this?
The harder you hit a baseball, the further the ball travels.
This is the 2nd law because it deals with force, mass, and acceleration.
200
What is the definition of Kinetic Energy?
An object in motion
300
What is the definition of Velocity?
The speed of an object combined with the direction of its motion
300
What is a balanced force?
Forces that do cancel each other out and there is no change in the objects speed or direction.
300
What law is this?
Air is released from a balloon. The air pushed down, and the balloon goes up.
This is the 3rd law because the example is talking about action and reactions.
300
Is this example potential energy or kinetic energy?
-A speeding Car
This is Kinetic energy because the object is in motion
400
What is Newton's 2nd Law?
What three things does the 2nd Law have?
The Three things are:
-Force
-Mass
-Acceleration
400
Calculate the Net force and tell whether this is balanced or unbalanced.
300 - 300 = 0
This example is balanced.
400
What law is this?
A model rocket being launched up into the atmosphere.
This is the 1st law because the rocket is in constant motion and will continue to be in motion until another force is applied.
400
Is this an example of potential energy or kinetic energy?
-An unburned lump of coal
This is potential energy because the coal is at rest
500
What is Newton's 3rd Law?
For every action there is an equal and opposite reaction
500
Calculate the Net Force and tell whether this example is balanced or unbalanced.
125 - 75 = 50 N
This example is unbalanced
500
What Law is this?
Pushing a shopping cart.
This is the 2nd Law because it deals with Force, Mass, and Acceleration
500
Is this example potential energy or kinetic energy?
- A car battery
This is potential because the battery is not in motion