Fire
Forces
Scientific Method
Buoyancy
Speed
100
What are the components of the fire triangle?
Oxygen, Fuel, and Heat
100
What is the equation to find force?
Mass x Acceleration
100
What is the first step to the scientific method?
Make an observation.
100
A baseball has a diameter of 3 inches. An orange has a diameter of 4 inches. Which object has a greater buoyancy?
The orange
100
What is the equation to find speed?
Speed = Distance/Time
300
What are the stages of growth in fire?
Ignition, Growth, Full Development, and Decay
300
What is the force of gravity?
9.8 m/s2
300
What do you do if your hypothesis doesn't match with your results?
Make a new hypothesis OR iterate
300
Buoyancy will always act in a ______ motion/direction.
Upwards
300
Charlie is running after Kymani stole his sweater. Charlie pauses to catch his breath, and notices Kymani has ran 30 meters. He glances at his watch, and notices 2 seconds had passed since he stopped to catch his breath. What is Kymani's speed? SHOW WORK
15 m/s
500
How does convection work?
500
A student is pushing a 50 kg kart, with a force of 600 N. Another student measures the speed of the cart, and finds that the cart is only accelerating at 3 m/s2. How much friction must be acting on the cart? Draw a diagram showing the cart, and the two forces acting on it.
450 N of friction.
500
What are all the steps of the scientific method in order?
1. Observatioin
2. Ask a question
3. Rsearch
4. Construct a Hypothesis
5. Experiment
6. Analyze Data
7. Communicate Results
500
What is the formula for buoyancy?
Fb=-pgV
500
What is the speed of a walking person in m/s if the person travels 1000m in 20 minutes? Round your answer to the nearest hundredth. MUST SHOW WORK
0.83 m/s