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Nature of Science
Kinematics 1
Kinematics 2
Kinematics 3
Random
100
A statement, based on previous observations, that can be tested scientifically.
Hypotheses
100
What is the equation that tells us how an object's velocity changes as a faction of time.
V=Vo+a(t)
100
I'm the main equation used.
X=Xo+Vo+t1/2at^2
100
Final Velocity Formula
V^2=Vo^2+2a(X-Xo)
100
What are the base units for temperature, time,and mass
Temperature: Kelvin Time: Seconds Mass:Gram
200
Often ideas that have not been validated but are among the most important ideas in science.
Theories
200
An acorn falls from a tree. You notice that it takes 2.5 sec to hit the ground. How fast was it going?
V=Vo+a(t) V=0+(-9.8)(2.5) V=-25.5 m/s^2
200
The positon of an object traceling is given by X=Xo+vt. If The initial positon is zero (Xo=0) what dose the equation become?
∆x=vt
200
A car accelerates from rest to 30m/s while traveling a distance of 20m, what is its acceleration.
a=v^2/2(X-Xo) a=(30m/s)^2/2(20m-0m) a=900m/s/40m a=22.5m/s^2
200
What's Herter's middle name?
Malo
300
The scientific method in order.
Ask a question -> Do background research -> Construct a hypothesis -> Test hypothesis by doing experiment -> analyze data -> Report results
300
What is the acceleration Gravity?
-9.8m/s^2
300
Over a period of 15 seconds a plane changes its velocity from 145 m/sec to 75 m/sec at a uniform rate of acceleration. Which kinematics equation did you use to solve this problem?
A=Vf-Vo/T
300
When combining the equations what do we elimimate?
Time (t)
300
What color is Herter's laser pointer?
Green
400
Name at least 3 safety equipment you would expect to see in a science class.
eye wash, fire extinguisher, safety goggles, gloves, first aid kit, fire blanket, ect..
400
True / False: The acceleration of a freefall object is always constant.
True
400
A car, initially at rest, begins to accelerate at 4.5 m/s2. How fast, in m/s, will it be going in 5.0 seconds?A car, initially at rest, begins to accelerate at 4.5 m/s2. How fast, in m/s, will it be going in 5.0 seconds? Given: Vo = 0 m/s a = 4.5 m/s2 v = ? t= 5.0 s
The car will be going 23 m/s in 5.0 seconds.
400
Symbols used in equation with meaning and full equation.
V=Final velocity Vo= Initial velocity a= acceleration x= final displacement Xo= initial displacement Equation: v^2=Vo^2=2a(X-Xo)
400
Determine the number of significant figures in the following measurement. 90,000g
1
500
True or False Science is primary a method for inventing new devises.
False
500
give equations needed for time and initial velocity.(V=Vo+at)
T= V-Vo/a Vo=V-at
500
A boat, initially moving at 20 m/s is only moving at 2.0 m/s in the same direction, 25 seconds later. Assuming that the boat's acceleration was constant, what was the boat's acceleration during this time? Given: Vo = 20 m/s v = 2.0 m/s t = 25 s a = ?
The boat's acceleration is 0.72 m/s^2
500
Equation used for displacement and acceleration.
d=Vo(t)+1/2at^2
500
What teacher is in room A124?(Next door)
Albrant