Question 1: Define a distance-time graph and explain what information it provides about an object's motion.

Answer: A distance-time graph shows how the distance traveled by an object varies over time, indicating its speed and motion pattern.

Question 2: What does a straight horizontal line on a distance-time graph indicate about the object's motion?

Answer: The object is stationary; it is not changing its distance over time.

Question 3: Describe how the slope of a distance-time graph relates to the object's speed.

Answer: The slope of the graph indicates the speed; a steeper slope means a higher speed, while a gentle slope indicates a lower speed.

Question 1: A nanotechnology robot moves 50 meters in 10 seconds. Calculate its average speed in meters per second (m/s). Use the formula: Speed = Distance / Time.

Answer: 5 m/s

Question 2: A nanobot’s distance-time data shows it traveled 120 meters in 30 seconds. What is its speed? Show your work.

Answer: Speed = 120 m / 30 s = 4 m/s

Question 1: Design a simple experiment to measure the distance traveled by a nanotechnology device moving in a controlled environment. List the variables involved and safety precautions to consider.

Answer: An experiment could involve placing the nanodevice at a starting point and measuring the distance it covers in a set time using a laser measurement system. Variables include initial position, time, and environmental factors like temperature. Safety precautions involve ensuring the device operates within safe parameters to prevent overheating or unintended reactions, and proper handling of nanomaterials to avoid inhalation or contamination.

Question 2: Identify at least two variables that could affect the accuracy of distance measurements in nanotechnology experiments involving moving nanodevices.

Answer: Environmental conditions such as temperature and vibrations, and measurement device calibration errors.

Question 1: A nanorobot moves with a constant speed of 3 m/s for 20 seconds. Describe the nature of its distance-time graph and explain what it indicates about the robot's motion.

Answer: The graph would be a straight line with a positive slope, indicating uniform motion at a constant speed. The distance increases steadily over time without acceleration or deceleration.

Question 2: In a nanotechnology manufacturing process, a nanodevice's distance-time data shows an initial rapid increase in distance followed by a plateau. What does this pattern suggest about the device's motion?

Answer: The device initially accelerated or moved quickly, then slowed down or stopped, indicating a change in velocity or a pause in movement.

Question 3: Explain how understanding distance-time graphs can be useful in optimizing nanotechnology devices for medical applications.

Answer: By analyzing the graphs, engineers can determine the speed and efficiency of nanodevices, identify optimal movement patterns, and ensure precise control for targeted medical procedures.