Newton
Properties
Forces
Internal
External
100
Newton's third law states...
For every action force, there is an equal and opposite reaction force
100
Elasticity is a property that enables ___________ changes.
Temporary
100
Define a force.
A push or a pull
100
True/False: Compression is an internal force.
True
100
The force that pulls objects towards Earth.
Gravity
200
Identify the action force and reaction force when someone is pushing on a wall.
200
Give an example of a material that shows plasticity.
Playdoh, cookie dough, etc.
200
Name a non-contact force.
Gravity, magnetism, etc.
200
Define internal force.
Forces that act within an object or structure
200
Define external force
A force applied from the outside
300
The ability of an object to return to its original shape after being stretched.
Elasticity
300
What type of internal force happens when an object is twisted?
Torsion
300
When a rubber band is stretched and let go, this force helps it return to its original shape.
Spring/Elastic Force
400
What are the action and reaction forces when a balloon car moves when the air rushes out.
Action - Balloon releasing air
Reaction - car moving
400
What does "plasticity" mean?
The ability of a material to be deformed and retain its new shape
400
Which of the following is a contact force?
- Gravity
- Friction
- Magnetic force
Friction
400
What internal force occurs when parts of an object slide past each other within the material?
Shear force
400
When Mr. R squishes a fidget, what is the external force?
Applied Force
500
In a rocket launch, which force propels the rocket upward?
The reaction force. (The gas pushing downward is the action force)
500
Name something at a construction site that shows an internal force. Name the force as well.
Answers may vary
500
Which external force causes an object to slow down?
Friction