WorksheetsExploring Energy and Design Concepts
Total questions: 28
Worksheet time: 14mins
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
Which of the following best describes potential energy?
Energy of motion
Stored energy due to position or condition
Energy from the sun
Energy in moving water
Which step comes after "develop possible solutions" in the engineering design process?
Identify the problem
Test and evaluate
Communicate results
Redesign
Which of the following is an example of mechanical energy?
A stretched rubber band
A battery
A glowing light bulb
A hot cup of coffee
What is the main purpose of a wedge?
To hold things together
To split or cut objects apart
To lift heavy objects
To change the direction of force
A lever is used to lift a heavy box. If the fulcrum is moved closer to the box, what happens to the effort needed to lift the box?
The effort increases
The effort decreases
The effort stays the same
The box cannot be lifted
A student wants to design a bridge that can hold more weight. Which step of the engineering design process should they focus on to improve their design?
Identify the problem
Test and evaluate
Communicate results
Redesign
Which form of energy transformation occurs when you use a battery-powered flashlight?
Chemical to electrical to light
Electrical to chemical to light
Light to chemical to electrical
Mechanical to electrical to light
A pulley system is used to lift a load. If you add more pulleys to the system, what happens to the force required to lift the load?
The force required increases
The force required decreases
The force required stays the same
The load cannot be lifted
If a stock’s price drops significantly, which type of market is most likely occurring?
Bull market
Bear market
Liquid market
Growth market
A student observes that a moving car eventually stops without anyone applying the brakes. Which type of energy transformation is primarily responsible for this?
Mechanical to chemical
Mechanical to thermal
Chemical to electrical
Electrical to mechanical
You are given a set of constraints and criteria for a design project. What should you do next in the engineering design process?
Build a prototype
Develop possible solutions
Test the solution
Communicate results
If you invest in a company’s stock and the company performs well, what is a likely outcome for your investment?
The value of your investment decreases
The value of your investment increases
You lose all your money
The number of shares you own decreases
A student is designing a wind-powered car. They test several blade shapes and record the distance traveled. What is the best way to determine which blade shape is most effective?
Choose the shape that looks best
Use the shape that travels the farthest
Use the shape that is easiest to build
Use the shape that is the smallest
A company’s stock price has been steadily increasing for several months. What might this indicate about investor confidence and the company’s performance?
Low investor confidence and poor performance
High investor confidence and good performance
No change in investor confidence
The company is about to go bankrupt
A team is tasked with designing a device to move water uphill using only simple machines. Which combination of simple machines could they use, and why?
Lever and wedge, because they can cut through water
Pulley and inclined plane, because they can lift and move water upward
Screw and wheel, because they can generate electricity
Wedge and screw, because they can split water molecules
You are given a design challenge to create a device that converts solar energy into mechanical energy. Describe a possible solution and explain the energy transformations involved.
Use a solar panel to power a motor that turns a fan; solar energy is converted to electrical energy, then to mechanical energy
Use a battery to power a light bulb; chemical energy to light energy
Use a pulley to lift a weight; mechanical energy only
Use a wedge to split wood; mechanical energy only
A company is considering two different designs for a new product. Design A is less expensive but less durable, while Design B is more expensive but lasts longer. As an engineer, how would you decide which design to recommend?
Choose Design A because it is cheaper
Compare the total cost over the product’s lifetime and recommend the one with the best value
Choose Design B because it is more expensive
Choose randomly
An investor wants to minimize risk in their stock portfolio. Which strategy would be most effective, and why?
Invest all money in one stock for higher returns
Diversify investments across different sectors to reduce risk
Only invest in new companies
Sell all stocks immediately
