Ch 10.1-10.2 Phys. Sci Quiz Flashcards
Scalar
A measurement that compares data
Vector
A scalar and a direction. They can be added and subtracted
Equation for speed
Distance/time
Speed
Any distance divided by time
Velocity
A distance plus a direction divided by time
Distance+direction
——————-
Time
Acceleration
Change in velocity/time
Average speed
Speed over a longer period of time
Instantaneous speed
Speed at one instant
Change
Velocity/time
Newton laws come from his book
Principa
Newtons 1st law
An object at rest will stay at rest unless a force acts upon it. An overt in motion will stay in monitor in a straight line at a constant speed unless a force acts upon it
Inertia
The resistance to change
Newton’s second law
The force applied to an object is directly proportional to the acceleration. The force applied to an object is directly proportional to its mass
Units for force
Newtons
Balanced force
For every push there is a pull. The forces are canceling out so we don’t see an acceleration or change