Exploring Energy and Design Concepts

Which of the following is an example of a simple machine?

• Pulley

• Battery

• Solar panel

• Circuit

What is the first step in the engineering design process?

• Build a prototype

• Identify the problem

• Test the solution

• Communicate results

Which of the following is a form of kinetic energy?

• Chemical energy

• Thermal energy

• Nuclear energy

• Gravitational potential energy

What does the term "dividend" mean in stock market vocabulary?

• The price of a stock

• A payment made to shareholders from a company’s profits

• The total number of shares

• The highest price of the day

Which simple machine is used to hold objects together or lift them by turning?

• Lever

• Screw

• Wedge

• Pulley

What type of energy is stored in the bonds of molecules?

• Electrical energy

• Chemical energy

• Mechanical energy

• Sound energy

In the stock market, what does "bull market" refer to?

• A market where prices are falling

• A market where prices are rising

• A market with no change

• A market with only new companies

Which of the following is NOT a step in the engineering design process?

• Communicate results

• Test and evaluate

• Ignore constraints

• Develop solutions

Which simple machine consists of a bar that pivots on a fixed point?

• Pulley

• Lever

• Inclined plane

• Wheel and axle

What is the main function of an inclined plane?

• To change the direction of a force

• To reduce the amount of force needed to lift an object

• To hold objects together

• To increase speed