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WorksheetsROV preTest 25-26
Total questions: 20
Worksheet time: 10mins
What is the force that allows objects to float or sink in water called?
Gravity
Buoyancy
Friction
Magnetism
Which tool would you use to measure the length of a small object most accurately?
Thermometer
Ruler
Stopwatch
Beaker
Which of the following is a basic component of an electric circuit?
Pulley
Resistor
Lever
Gear
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 best describes teamwork?
Working alone to finish a task
Competing against others
Working together to achieve a common goal
Ignoring others’ ideas
What does a closed circuit allow to happen?
Stops the flow of electricity
Allows electricity to flow
Changes the color of wires
Makes the circuit heavier
If an object floats in water, what can you say about its density compared to water?
It is denser than water
It has the same density as water
It is less dense than water
It is heavier than water
Which of the following is NOT a step in the engineering design process?
Brainstorm solutions
Ignore the problem
Test and evaluate
Communicate results
Which unit would you use to measure the mass of a small object?
Meters
Grams
Liters
Seconds
What is the main purpose of a switch in a circuit?
To increase voltage
To open or close the circuit
To store energy
To measure current
A team is building a remotely operated vehicle (ROV). Why is it important for team members to communicate effectively?
To finish the project faster
To ensure everyone understands their roles and tasks
To avoid using tools
To make the project more expensive
If you want your ROV to sink, what should you do to its overall density?
Decrease its density below that of water
Increase its density above that of water
Keep its density the same as water
Make it lighter
You have a wire, a battery, and a light bulb. How would you connect them to make the bulb light up?
Connect the wire to the battery only
Connect the wire from the battery to the bulb and back to the battery
Connect the wire to the bulb only
Place the bulb on top of the battery
During the design process, why is it important to test a prototype?
To see if it looks good
To determine if it solves the problem and works as intended
To make it more expensive
To finish quickly
A teammate disagrees with your idea for the ROV design. What is the best way to handle this situation?
Ignore their opinion
Listen to their reasoning and discuss possible solutions together
Argue until they agree
Quit the team
You need to measure the volume of an irregularly shaped object. Which method should you use?
Use a ruler to measure its sides
Use water displacement in a graduated cylinder
Weigh it on a scale
Measure its temperature
You are given a design challenge to build an ROV that can pick up objects underwater. What is the first thing your team should do?
Start building immediately
Identify and define the problem
Buy materials
Test the ROV in water
You are designing a simple circuit for your ROV. If the light bulb does not turn on, what is a logical first step to troubleshoot the problem?
Replace all the wires
Check if the circuit is closed and all connections are secure
Add more batteries
Remove the light bulb
Your team’s ROV is too heavy and sinks quickly. How could you use the concept of buoyancy to solve this problem?
Add more weight to the ROV
Attach materials that trap air to increase buoyancy
Remove all electrical components
Make the ROV smaller
You are tasked with designing a circuit that turns on a light only when a button is pressed. Which components and arrangement would you use?
Connect a battery directly to a light bulb
Connect a battery, a light bulb, and a switch (button) in series
Connect two batteries to a light bulb in parallel
Use only a light bulb and a switch
