Kinetic and Potential
What is Kinetic Energy
Energy in motion
What is the formula for speed?
S=d/t
What is a simple machine
Something that makes work easier to be done.
What is the purpose of a graph?
To show data and compare variables
On a graph, describe to me where the y axis would be?
vertical, up and down
What is potential Energy
Energy at rest
What is the speed?(don't forget your Units)
Distance=400m
Time=20min
20m/min
(NOT AN EXAMPLE)
ramp-something that is slanted
If I have a straight line in a graph, what does that mean?
Constant speed
On a graph, describe where the x axis would be?
horizontal(side to side)
Name a real life example of Kinetic energy
Roller Coaster
Sport
Dropping something
What is the speed?(don't forget your Units)
Time=14sec
Distance=28yrds
2yrds/sec
Roof
Wheelchair ramp
If I have a HORIZONTAL(SIDE TO SIDE) line on a graph what two things does that mean?
-constant speed
-the object or person is at rest
If something went fast did it have MORE or LESS friction?
LESS friction, because it went fast
Name a real life example of Potential energy
Something at its highest peak(rollercoaster)
Something not moving.
What is the speed?(don't forget your Units)
Time=100sec
Distance 25mi
.25mi/sec
If I have a ramp with different materials going down it, what am I testing for? What is my experiment
You are testing each of their speeds, and comparing their frictions.
If I have a curved upward line what does that mean for the object?
-not constant
-object is speeding up
If something went really slow down a ramp, did it have MORE or LESS friction
Name an example where you see both
Kinetic and Potential energy.-Explain BOTH
Miss Chancellors discretion
What is the speed?(don't forget your Units)
Distance=120m
Time=80sec
s=1.5m/sec
If I have an inclined plane and testing the speed of objects going down it:
The times are:
22s
16.25s
23s
17s
Which of these times is the fastest? Which of these times is the slowest?
Fastest is 16.25sec
Slowest 23sec
If I have a line that curves out downward, and comes to a horizontal line, what happened in the graph?
The object slowed down and eventually came to a stop.
Which of these could be tested in a classroom?
a)a person who is shivering could put on a hat
b) a ball will roll faster down a ramp that is steeper
c) at toy spring is made up of thin loops of plastic
d) a small rock is yellow and brown with a rough surface.
b) a ball will roll faster down a ramp that is steeper