## Glossary of umm...the beginning stuff

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- Name the steps in the scientific method
- Recognize a problem

Make Educated Guess

Perform experiment

Reorganize explanation of world based on results

- What is a fact?
- An observation made by a group of competant people

- What is the formula to calculate average speed?
- Avg Speed = total distance/total time

- What is velocity?
- Speed and direction

- What is acceleration?
- Any CHANGE in velocity

- What is the formula for acceleration?
- A = change in speed/time

- how is a hypothesis scientific?
- If it can be proved wrong

- What are the 2 controls that cause a change in speed?
- gas pedal

brake

- What thing in the car causes a change in velocity?
- steering wheel

- The acceleration of a car that travels in a straight line at a constant speed of 100 km/hour is equal to what?
- 0 m/s because neither the speed or direction are changing

- What is the acceleration of any freely falling object?
- 10 m/s

- What is the formula for measuring how far an object will drop?
- d=1/2gt^2

- What is the formula for how fast an object freely falls?
- v=gt^2