Engineering Design Process
How many steps are in the engineering design process?
Seven
What is energy in motion?
Kinetic Energy
What are the circular components that are intended to revolve around an axle called?
Wheels
Given the height of a ramp is set to 0.14 meters and the racecar has a mass of 1.4 kg, find the potential energy of the car when placed at the top of the ramp. Recall gravity: 9.81 m/s^2
1.92 J
What is the first step of the engineering design process?
Identify the Problem
What is stored energy?
Potential Energy
What is the shaft (bar) that holds the wheels of the car called?
Axles
Given a car with a mass of 1.8 kg that is traveling down the ramp at a speed of 0.87 m/s, find the kinetic energy of the car as it rolls down the ramp.
0.68 J
What is the second step of the engineering design process?
Research the Problem
What is the unit of energy?
Joules (J)
The study of how air flows around solid objects.
Aerodynamics
Given the height of a ramp is set to 2.42 meters and the racecar has a mass of 3.6 kg, find the potential energy of the car when placed at the top of the ramp. Recall gravity: 9.81 m/s^2
85.46 J
What is the fifth step of the engineering design process?
Create & Develop a Prototype
What is the type of potential energy dependent on height and gravity pulling on an object?
Gravitational Potential Energy
A force, such as friction, that operates opposite the direction of motion.
Resistance
Given a car with a mass of 3.2 kg that is traveling down the ramp at a speed of 1.25 m/s, find the kinetic energy of the car as it rolls down the ramp.
2.5 J
What is the seventh step of the engineering design process?
Improve & Redesign
What is the type of potential energy that is stored within the molecules of a substance.
Chemical Potential Energy
Is a car with a flat front end or a rounded front end more aerodynamic?
Round front end
Given a car with a mass of 13.2 kg that is traveling down the ramp at a speed of 4.23 m/s, find the kinetic energy of the car as it rolls down the ramp.
118.09 J