Engineering Design
In any engineering project, which one is NOT a constraint?
A. the cost of the project
B. the local laws
C. my favorite color
D. Scientific principles related to the solution
E. Impacts on humans
c. My favorite color
As the moon orbits around Earth…
a. Different parts of it appear to be illuminated by the sun
b. The moon shines its light in other directions
c. This causes day and night
d. The mon always appears the same
a. Different parts of it appear to be illuminated by the sun
What is carrying capacity?
a. How many items you can carry from one end of a habitat to another
b. How many predators are in the habitat
c. The abiotic factors of an ecosystem
d. The number of organisms a habitat can support
d. The number of organisms a habitat can support
What does the strength of the force of gravity depend on?
a. The masses of the objects and their speed
b. The mass and weight of objects
c. The masses of the objects and the distance between them
d. The length of the objects and its speed
c. The masses of the objects and the distance between them
The number of waves that can pass a given point in one second.
a. Amplitude
b. Friction
c. Crest
d. Frequency
d. Frequency
You are to build a platform that is four feet high and will support three plastic dinosaur toys. You may use wood, Styrofoam, or any other material you like. What is one of the criteria of this project?
a. Time limit of 20 minutes
b. Four feet high
c. Must use wood
d. Must be able to support your body weight
b. Four feet high
When the moon blocks the sun’s light, a ___ eclipse occurs.
a. Solar
b. Lunar
c. Polaris
d. Interstellar
A. Solor
Humans have bacteria that live in our stomach and intestines. These bacteria are adapted to survive in this environment and have difficulty surviving elsewhere. The bacteria help humans to digest food. This is an example of which interaction?
a. Herbivory
b. Competition
c. Mutualism
d. Parasitism
C. Mutualism
a. The force of a push or a pull on an object
b. The force pulling us towards the Earth
c. Increasing force because of increased mass of an object
d. The tendency of an object to resist change in motion
d. The tendency of an object to resist change in motion
When the particles of the medium are displaced in a direction parallel to energy transport it is a…
a. Longitudinal
b. Transverse
c. Reflective
d. High-frequency
a. Longitudinal
We have created balloon cars and want to know which one is the best design. The criteria that the car must be propelled by a balloon and travel four feet in 10 seconds. Which design is the best solution?
a. prototype 1: travels four feet in 15 seconds
b. Prototype 2: travels four feet in 9 seconds
c. Prototype 3: travels 3 feet in 10 seconds
d. Prototype 4: travels 7 feet in 20 seconds
b. Prototype 2- travels 4 feet in 9 seconds
The moon has phases where it seems to change shape in the sky. A solar eclipse occurs during what moon phase?
a. Full moon
b. Waning crescent
c. Waxing crescent
d. New moon
Why are decomposers important to an ecosystem?
a. They help ensure the prey population does not get too large
b. They break down dead and decaying animal and plant matter and return nutrients to the soil
c. They make the apex predators stronger
d. They can produce their own food using sunlight
b. They break down dead and decaying animals and plant matter and return nutrients to the soil
What controls the orbits of objects in our solar system?
a. Speed and light
b. Inertia and gravity
c. Gravity and speed
d. Momentum and inertia
b. Inertia and gravity
a. Nothing
b. The object moves
c. The object stops moving
d. The objects become warmer
d. The objects become warmer
Children walking to school must cross a busy street. What should be considered in coming up with a solution to this problem?
a. How many children are actually crossing the street each day
B. Is this route used for anything else
c. What can be done to make sure children are safe when crossing the street
d. None of these
c. What can done to make sure children are safe when crossing the street
For a lunar eclipse to occur…
a. The sun must be very close to the moon
b. The Earth must be between the sun and the moon
c. Moon has to be between the Earth and the sun
d. The season must be autumn
B. The Earth must be between the sun and the mon
In the foothills of the mountains, many new houses are being built. How does this affect the organisms who were already living there? Choose the answer that is most likely.
a. It would have no effect on organisms already living there
b. There are no organisms living there
c. The organisms living there would lose some of the their space and habitat
d. The organisms would find a way to adapt and live in the same habitat that the houses are now sitting on
c. The organisms living there would lose some of their space and habitat
Our solar system is part of the….
a. Milky Way Galaxy
b. Andromeda Galaxy
c. Magellan Galaxy
d. Perseus Galaxy
a. Milky Way Galaxy
Objects or substances that absorb any wavelength of electromagnetic radiation become warmers and…
a. Produce a gas
b. Convert the absorbed energy to infrared radiation (heat)
c. Convert the absorbed energy into chemical energy
c. Reflect back twice as much energy
b. Convert the absorbed energy to infrared radiation (heat)
You have a high ramp, a low ramp, and a medium ramp. You are going to roll a toy car down and measure how far it goes with each ramp. What should should we record in our data?
a. The height of the first ramp only
b. The distance in centimeters that the car travels when released from each ramp
c. How long in seconds it takes the car to travel from the top of the tallest ramp to the bottom of the ramp
d. all of the above
b. The distance in centimeters that the car travels when released from each ramp
The reason there is not a solar eclipse every month is…
a. The moon’s orbit is tilted 5 degrees from the Earth’s orbit
b. It must occur in a particular season of the year
c. There are other light sources like stars that interfere with an eclipse
d. The sun must regenerate energy before another solar eclipse
a. The moon’s orbit is tilted 5 degrees from the Earth’s orbit
California boaters are encouraged to clean and dry their boats and check them for zebra mussels after each use. Zebra mussels clog water intake pipes and destroy native populations of mussels. Is this a good suggestion?
a. No, they really should stop boating altogether
b. Yes, zebra mussels are invasive, and we want to stop them from spreading.
c. No, because zebra mussels are interesting
d. I am sure zebra mussels are not that bad and we should not make that big a deal out of it
b. Yes, zebra mussels are invasive, and we want to stop them from spreading
What is the shape of the Milky Way Galaxy?
a. Elliptical
b. Oblong
c. Spiral
d. Irregular
c. Spiral
Which of these are the advantages of digital signals?
a. Digital signals do not break down over time
b. Digital signals are inexpensive
c. Digital signals are not stable
d. Digital signals are lighter than analog signals
a. Digital signals do not break down over time