Scientific Method
Name 3 steps of the Scientific Method
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Research
Hipothesis
Experiment
Analise Results
Conclusion
1.5 days to hours
36 hrs.
Formula for Speed
S=d/t
formula for acceleration (complete)
a= Sf-Si/t
Inertia
Compare results to hipothesis.
3 feet to inches
36
Calculate the distance after 5 seconds when speed is S=3 m/s
15 mts.
units for acceleration
m/s2
Formula for Force
F= m * a
Diference between Hipothesis and Theory
Hipothesis is an idea you can prove. The Theory is an idea that can´t be proved
26.8 yards to cm
2450
Difference between Distance, Trayectory and Displacement
Distance: Length of trayectory
Displacement: Straight line between point A y B
Trayectory: Path traveled
is there negative acceleration?
yes!
How much is the weigth of a box that measures 30cm * 40cm * 50cm and has 50 kg in it.
50kg * 9.8 m/s2 = 490 N
What is the variable in the experiment section
The factor that changes every time
2.6 cm2 a mm2
260 mm2
difference between average speed and instantaneous speed
Average speed is the total distance over the total time, instantaneous speed is the average speed in a very short period of time.
A car starts from rest and achieves a speed of 54km/hr in 3 seconds. Find its Acceleration?
5m/s2
Pressure of a box of 100 kg in 1/2 m2
1960 Pa
Who invented the Scientific Method
Galileo Galilei
145 liters to cubic meters
0.145
time when S= -25 m/s and d= 90m
Negative speed does not exist. :(
A car needs to stop in less than 3s calculqte the acceleration if Si= 140 km/hr
-12.9 m/s2
pressure applied to a mosquito that has been crushed with 50N. mosquito area 0.5mm2 and hand area 200 cm2
10,000 Pa