Vocab
Formulas and Other Stuff
Graphs
Newton's Laws of Motion
100
What is position?
An objects distance and direction from the reference point.
100
What is the displacement formula?
Displacement = Final position – initial position
100
Identify what is going on in each graph.
A. The car is stopped.
B. The car is moving at a constant speed.
C. The speed of the car is increasing.
D. The car is coming to a stop.
100
Who is Issac Newton and what did he accomplish?
He was a natural philosopher. Established classical mechanics, contributed to optics, and co-created calculus, etc. Published a book: Mathematical Principles of Natural Philosophy. Introduced laws of motion and universal gravitation. Built the first practical reflecting telescope. Observed a prism separates white light into colors.
200
What is displacement?
Displacement is the difference between the final position and the initial (first) position of an object.
200
What is the speed formula and its units?
Speed=distance/time
SI= m/s
200
Identify what is happening in the graphs.
A B
C D
A. The object has a constant velocity.
B. The objects velocity is increasing.
C. The objects velocity is decreasing.
D. The objects velocity is increasing.
200
What are Newton's Laws of motion?
1. An object at rest will stay at rest and an object in motion will stay in motion until acted upon by an external, unbalanced force.
2. The force of an object is equal to its mass times acceleration. F=ma
3. For every action there is an equal and opposite reaction.
300
What is speed?
A measure of the distance an object travels per unit of time.
300
What is the velocity formula and its units?
Velocity=change in distance/change in time
SI= m/s
300
How do you find instantaneous speed from a time and distance graph?
Speed=Distance traveled/time elapsed
300
What is Force and what are it's units?
Force is a push or pull on an object.
SI: N (Newtons)=kg(m)
400
What is velocity?
The speed AND direction of a moving object.
400
What is the acceleration formula and its units?
Acceleration=final velocity-initial velocity/change in time
SI=m/s2
400
How do you find acceleration from a velocity vs. time graph?
Acceleration=final velocity-initial velocity/change in time
500
What is acceleration?
A measure of the change in velocity during a period of time.
500
What is a scalar?
What is a vector?
A scalar has magnitude only (speed).
A vector has magnitude and direction (velocity).