General Flashcards
How do you properly describe motion?
Use the following:
Start & End position? Movement relative to what? How far did it go? In what direction did it go?
What are the 3 types of speed?
Constant speed- The same rate of speed constantly
Average speed- total distance divided by the time taken
Instantaneous speed- the speed at one point in time
What can 1 Newton do?
Causes a 1kg mass to accelerate at a rate of 1m/s/s (m/s-squared)
How will an object more without an outside force?
It can’t, stationary objects will not start moving without the interference an outside force
What will happen to B if A increases and the two are directly proportional?
B will increase if A increases and vice versa
What will happen to B if A decreases and the two are directionally proportional?
B will decrease if A decreases and vice versa
What will happen to B if A increases and the two are inversely proportional?
B will decrease if A increases and vice versa
What is the difference between weight and mass?
Mass is the amount of matter in an object, whilst weight is the force of gravity on an object.
Clarifier:
A person will have the same mass on earth and moon, but due to gravity will have different weights on the respective planets.
What 4 factors effect Terminal Velocity?
-Shape of object
-Size of object
-Density of object
-Fluid Density (density of gas/liquid object is falling through)
The m before V, A and Ω in electricity means micro, what does adding micro in front do to the measurement?
microvolts, microamperes and microohms are each smaller than the regular measurements without micro. Micro makes it smaller by a thousandth, so 1000 mV is equal to 1 V
Define Hysteresis
A property of a ferromagnetic material, when exiting an external magnetic field the ferromagnetic material retains it’s magnetization.
