Mechanical Energy & Roller Coaster Study Guide

Mechanical engineering is the study of...

• planning, designing, constructing of structures and systems in our world and environment

• systems and objects in motion

• electrical power

• deals with chemical production and the manufacture of products through chemical processes

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True or False: Mechanical engineering focuses on technology that affects daily life- equipment, transportation, environment, space exploration, climate change and even human body.

• True

• False

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Some examples of items made by mechanical engineers are:

• roller coasters, toys, bicycles

• bridges and skyscrapers

• soda and coffee

• electrical power lines

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Some examples of items made by mechanical engineers are:

• doritos, fritos & takis

• bridges and skyscrapers

• cars, aircraft, spacecraft, medical devices

• computer microchips

True or False: Roller coasters don’t have engines.

• True

• False

Which type of energy is known as stored energy?

• Potential

• Kinetic

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Which type of energy is known as energy in motion?

• Potential

• Kinetic

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What is force by which a planet or other body draws objects toward its center?

• inertia

• gravity

• kinetic energy

• potential energy

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The law of _________________ holds that an object in motion will stay in motion until acted upon by an equal but opposite force.

• inertia

• gravity

• kinetic energy

• potential energy

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With the air brakes, which two forces bring the roller coaster to a stop?

• friction and resistance

• gravity and friction

• resistance and gravity

• inertia and gravity

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