Measurement and Units
The SI unit of time
What is/are seconds?
A vector that describes how fast something is going
What is Velocity?
F = ma
What is Newton's 2nd law?
The formula for Momentum
What is p = mv?
The energy dependent on relative position
What is potential energy?
The number of grams in a kilogram
What is 1000?
The value that is 0 if you walk in a circle
What is Displacement?
Objects will not change velocity unless acted on by an outside force
What is inertia/1st law?
Momentum before and after a collision is the same
What is conservation of momentum?
The energy you would have at the bottom of a hill you sled down
What is kinetic energy?
The ratio you multiply a measurement by to change it's units
What is a Conversion Factor?
The slope of a velocity-time graph
What is acceleration?
Two forces that are equal and opposite, ala the 3rd law
What are action-reaction pairs?
This is EQUAL to change in momentum
What is impulse?
The reason a rollercoaster has smaller and smaller hills along the ride
What is friction?
Speed is lost due to friction and therefore the car will not make it over as high of a hill as it goes along.
kg * m/s^2 is equal to this unit
What are Newtons?
The name of the motion of thrown objects
What is projectile motion?
The reason an object can have 0 net force on it, but be moving at constant speed
What is.. acceleration being CHANGE in velocity?
No acceleration just means no increase/decrease in velocity.
A car collides with another and they drift off as a unit
What is an inelastic collision?
I drop a 2 kg object from a height of 10 m. Half way down, it has this much potential energy.
What is 100 J?
The unit I'd be converting to if I divide by about 750
What is Watts being converted to Horsepower?
Two balls. At the same time, one dropped down from a window, one thrown horizontally from the window.
Which ball has the greater speed at ground level?
What is NEITHER!
They both experience the same acceleration due to gravity in the vertical direction.
The force that allows a car to make a turn on the road
What is the force of friction?
What is Object 2?
This type of energy holds Na and Cl together to make salt
What is chemical energy?