Collision Effects
It causes shape and motion changes.
What happens to solid objects in a collision?
An object at rest remains at rest, and an object in motion remains in motion
What is Newton’s first law of motion?
Friction
A contact force due to interaction between surfaces in contact
The factor in an experiment that scientists change to observe its effect
What is an independent variable?
1/2mv2
What is kinetic energy?
Different materials, shapes, and thicknesses
Which factors that result in different elastic limits and breaking points for different objects.
F= ma
What is Newton’s second law of motion?
Normal Force
When a cell phone falls and hits the ground, what force does the ground exert on the phone?
The factor scientists measure during the experiment
What is a dependent variable?
Mass of the object.
Height of the object.
Value (strength) of the gravitational field
What are the factors of gravitational potential energy?
Equal strength and opposite directions
What is the result of the force(s) between objects during a collision?
For every action, there is an equal and opposite reaction
What is Newton’s third law of motion?
returns to its orginal shape
When a force is applied to an elastic object and then removed, what happens?
Elastic limit
the maximum stress a material can withstand before it permanently deform.
Gravitation, elastic, and chemical
What are three types of potential energy?
Speed and mass increases
Factors that increase kinetic energy of a moving object?
It can be used to calculate force(s) on a body
How is Newton's second law of motion used in everyday life?
A force that causes an object to accelerate or to changes its direction
What is an unbalanced force?
Speed
On a Distance-Time graph, what does the slope represent?
stretched and/or compressed object
How does an object gain elastic potential energy?
The more damage that object can do in a collision.
What happens in a collision with an object that has more kinetic energy?
To determine the Reaction force(s) on a body
How is Newton's first law of motion used in everyday life?
It considers each object separately, showing all the forces acting on it.
How can a free-body diagram be useful in representing forces during a collision?
max point on a deformation vs force graph
What is the breaking point of a material?
Kinetic energy
What causes change of motion in a collision?