Flashcards in Physics Deck (29):
What are manipulated and responding variables?
Manipulated: Variable the designer alters
Responding: The result
What are the four rules of sig digs?
- No zeros
- Trailing zeros
- Trapped zeros
- Leading zeros
What is the rule of certainty?
Least amount of sigdigs in a question
What is uniform motion?
Constant ratio of speed
-Straight line when on a graph
What is velocity measured in?
M/S or KM/HR
What is fundamental?
Base units for time(s), mass(kg), length(m)
What is derived?
Two fundamental units combined (m/s) or (km/hr)
What is non-uniform motion
Changing rate of speed
What are the units used for acceleration?
(M/S^2) or (KM/Hr^2)
What is the formula for work?
Rearrange the work formula
What is work?
A force applied to an object causing it to be displaced
Hat energy is gained when work is put into it?
What is a force?
A push or pull
What are the transformations of energy?
Motion, shape, temperature
Write a transformation of energy
Potential energy is_______
Kinetic energy is_______
Rearrange the Ep formula for M and H
What number stands for gravity
What are the two laws of thermodynamics?
-Energy cannot be created, simply rearranged
-Energy flows from hot to cold
What is efficiency
How well it converts energy