Vocab Section 1
A contact force resulting from two objects rubbing against each other.
Friction
Combination of all forces acting on an object.
Net Force
Unit used to measure force.
Newtons
A ball is pushed to the right with 13 N and pushed to the left with 13 N. What is the Net Force? Is this balanced or unbalanced?
0 N and balanced
A box is pushed to the right with 20 N and pushed to the left with 10 N. What is the Net Force? Is this balanced or unbalanced?
10 N and unbalanced
A position change when compared to another object.
Motion
The pushing or pulling of an object.
Force
When one variable is dependent on another variable.
Relative
Newton's First Law is also sometimes called the Law of _______________.
Inertia
A wagon is pulled to the right with 30 N, then pulled back to the left with 12 N. What is the Net Force? Is this balanced or unbalanced?
18 N and unbalanced
This law of motion states that for every action there is an opposite and equal reaction.
Newton's Third Law
A force that causes a change in an object's motion. It occurs when the resultant of all forces acting on an object is not equal to zero, leading to acceleration or a change in direction.
Unbalanced Force
A place or object used for comparison to determine whether something is in motion.
Reference Point
What is the equation for Newton's Second Law?
F= M x A or Force equals Mass times Acceleration
A carriage is pulled to the right with 15 N. Two people push the wagon to the left, one with 6 N and the other with 4 N. What is the Net Force? Is this balanced or unbalanced?
5 N and unbalanced
A force that pulls objects toward each other as a result of their masses.
Gravity
A situation where two or more forces acting on an object are equal in size but opposite in direction, resulting in a net force of zero.
Balanced Force
This law of motion states that heavier objects need a larger force to make them move. F= M x A
Newton's Second Law
Newton’s Third Law requires an ________________ to create a ________________.
Action and Reaction
A skateboard is pushed forward with 10 N, pushed backward with 10 N, and then pushed forward again with 5 N. What is the Net Force? Is this balanced or unbalanced?
5 N and unbalanced
This law states that an object in motion stays in motion and an object at rest stays at rest unless acted upon by an unbalanced force.
Newton's First Law
A basketball bounces off the ground when it is dribbled. Is this balanced or unbalanced? Which one of Newton's Laws is this showing?
Unbalanced and Newton's Third Law
A parked car sitting in a parking lot. Is this balanced or unbalanced? Which one of Newton's Laws is this showing?
Balanced and Newton's First Law
It would take more Force to push a car than it would to push a bicycle. This is an example of which one of Newton's Laws?
Newton's Second Law
A soccer ball is kicked forward with 20 N, then kicked backward with 25 N, and then kicked forward again with 5 N. What is the Net Force? Is this balanced or unbalanced?
0 N and balanced