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Worksheets船的浮力与设计过程
Total questions: 36
Worksheet time: 32mins
Type your name in English. 写下你的英文名字。
What is the correct order of steps in the design process? 设计过程中步骤的正确顺序是什么？
Test → Build → Evaluate → Plan
Plan → Evaluate → Build → Test
Plan → Build → Test → Evaluate
Build → Evaluate → Test → Plan
Which material would most likely improve the boat’s ability to float? 哪种材料最有可能提高船的浮力？
Rubber tires 橡胶轮胎
Concrete blocks 混凝土块
Plastic bottles 塑料瓶
Popsicle sticks 冰棒棍
Why might polystyrene foam boards be a good choice for the boat hull? 为什么聚苯乙烯泡沫板可能是船体的好选择？
They are prone to cracking under pressure 它们容易在压力下开裂
They are heavy and sink easily 它们很重，容易下沉
They are difficult to repair if damaged 它们受损后难以修复
They are lightweight and buoyant 它们轻便且浮力大
What happens if the density of the boat is greater than the density of water? 如果船的密度大于水的密度会发生什么？
The density of the boat doesn’t affect floating 船的密度不影响浮力
The boat will sink 船会下沉
The boat will float 船会浮起
The boat will move faster 船会移动得更快
What happens if the surface area of the hull is too small? 如果船体的表面积太小会发生什么？
The boat will be easier to steer 船会更容易操控
The boat will require less maintenance 船需要的维护更少
The boat will sink faster 船会下沉得更快
The boat may capsize 船可能会倾覆
How does the shape of the hull affect the boat's speed? 船体形状如何影响船的速度？
A deep hull is better for speed 深船体更适合速度
A narrow hull is always the fastest 窄船体总是最快的
A streamlined hull reduces drag 流线型船体减少阻力
A rounded hull increases stability 圆形船体增加稳定性
What is the purpose of a sail on a boat? 船帆的作用是什么？
To catch wind and propel the boat 捕捉风力推动船只
向其他船只发出信号 To signal other boats
To store food 储存食物
To make noise 制造噪音
Which factor is most important for a sail's effectiveness in a sailboat? 哪个因素对帆船的帆的效果最重要？
Brand of the sail 帆的品牌
Weight of the sail 帆的重量
Age of the sail 帆的年龄
Shape of the sail 帆的形状
What is buoyancy? 什么是浮力？
The depth of water 水的深度
The temperature of the water 水的温度
The color of the boat 船的颜色
The ability to float 浮力
Why is it important to consider weight distribution in a boat? 为什么重量分布在船上很重要？
It affects the boat's speed 它影响船的速度
It has no effect on performance 它对性能没有影响
It only matters for large boats 它只对大船重要
It can prevent capsizing 它可以防止倾覆
What is the primary force acting on a boat when it is in water? 船在水中时主要受到哪种力的作用？
Buoyancy (Upthrust) 浮力（上托力）
Inertia 惯性
Magnetism 磁力
Surface tension 表面张力
How can you increase the stability of a boat? 如何增加船的稳定性？
Lower the center of gravity 降低重心
Use a longer keel 使用更长的龙骨
Add more sails 增加更多帆
Increase the weight of the boat 增加船的重量
How does wind direction affect sailing? 风向如何影响航行？
It determines the angle of the sail 它决定帆的角度
It only affects the crew's comfort 它只影响船员的舒适度
It makes the boat go faster 它使船移动得更快
It is irrelevant to performance 它与性能无关
Which type of energy is most responsible for moving the sailboat forward? 哪种能量最能推动帆船前进？
Chemical energy 化学能
Kinetic energy from water 水的动能
Potential energy from the hull 船体的势能
Kinetic Energy of Wind converted into thrust 风的动能转化为推力
Why should you test your boat before the final race? 为什么在最终比赛前应该测试你的船？
To make it heavier 使其更重
To see if it floats for a long time 看看它是否能长时间浮起
To increase water resistance 增加水的阻力
To check if the design works and adjust for any problems 检查设计是否有效并调整任何问题
What is the main goal when designing the hull of the boat? 设计船体时的主要目标是什么？
To make it as wide as possible 使其尽可能宽
To make it look decorative 使其看起来装饰性
To balance stability and decrease resistance from water 平衡稳定性并减少水的阻力
To increase weight 增加重量
Which force acts against the motion of the sailboat, trying to stop it? 哪种力作用于帆船的运动，试图阻止它？
Water resistance 水的阻力
Gravity 重力
Wind Thrust 风的推力
Air Resistance 空气阻力
Why is it important to minimize air and water resistances on a boat? 为什么在船上最小化空气和水的阻力很重要？
To make the boat heavier 使船更重 c) d)
To allow the sail to catch more wind 使帆捕捉更多风
To make the boat sink faster 使船下沉得更快
To increase the speed of the boat 增加船的速度
Why is it important to evenly distribute weight in your boat? 为什么在船上均匀分布重量很重要？
To prevent it from tipping over 防止其倾覆
To make it heavier 使其更重
To increase water resistance 增加水的阻力
To make it slower 使其更慢
How can you reduce water resistance on your boat? 如何减少船的水的阻力？
Use smoother materials for the hull 使用更光滑的材料作为船体
Make the shape of the hull streamlined 使船体形状流线型
Reduce the sail size 减小帆的尺寸
Increase the weight of the boat 增加船的重量
What happens if the weight of the boat is greater than the buoyant force? 如果船的重量大于浮力会发生什么？
The boat will sink 船会下沉
The boat will move faster 船会移动得更快
The boat will float higher in the water 船会在水中浮得更高
The boat will become more stable 船会变得更稳定
Placing heavier items at the bottom of the boat will: 将较重的物品放在船底会：
Raise the center of gravity, making the boat unstable 提高重心，使船不稳定
船会移Lower the center of gravity, improving stability 降低重心，增加稳定性 动得更快
Increase air resistance 增加空气阻力
Increase water resistance 增加水的阻力
What happens if the density of the boat is greater than the density of water? 如果船的密度大于水的密度会发生什么？
Use denser materials for construction 使用更密的材料进行建造
Decrease the surface area of the hull 减少船体的表面积
Increase the volume of the boat by making the hull larger 通过使船体更大来增加船的体积
The boat will sink 船会下沉
What is the effect of wind speed on a sailboat's performance? 风速对帆船性能的影响是什么？
Too high wind speed can cause capsizing 过高的风速可能导致倾覆
Higher wind speed always leads to faster sailing 更高的风速总是导致更快的航行
Wind speed has no effect on performance 风速对性能没有影响
Wind speed only affects the crew's comfort 风速只影响船员的舒适度
How does the weight of the crew affect the boat's performance? 船员的重量如何影响船的性能？
Heavier crew can improve stability 更重的船员可以提高稳定性
Heavier crew can slow down the boat 更重的船员可能会减慢船速
It has no effect on performance 对性能没有影响
It only affects the comfort of the crew 只影响船员的舒适度
What is the impact of water temperature on a sailboat's buoyancy? 水温对帆船的浮力有什么影响？
Colder water increases buoyancy 冷水增加浮力
Warmer water decreases buoyancy 温水减少浮力
Water temperature has no effect on buoyancy 水温对浮力没有影响
It only affects the comfort of the crew 只影响船员的舒适度
How does the size of the sail affect the boat's speed? 帆的大小如何影响船的速度？
A smaller sail is always faster 小帆总是更快
A larger sail makes the boat harder to control 更大的帆使船更难操控
A larger sail can catch more wind 更大的帆可以捕捉更多的风
The size of the sail has no effect on speed 帆的大小对速度没有影响
What is the effect of hull material on a boat's performance? 船体材料对船的性能有什么影响？
It determines the color of the boat 决定船的颜色
It has no impact on performance 对性能没有影响
It affects the weight and durability of the boat 它影响船的重量和耐用性
It only affects the appearance of the boat 只影响船的外观
How does the shape of the sail influence its performance? 帆的形状如何影响其性能？
A larger sail always performs better 更大的帆总是表现更好
The shape of the sail has no effect on performance 帆的形状对性能没有影响
A curved sail can catch more wind 弯曲的帆可以捕捉更多的风
A flat sail is better for speed 平帆更适合速度
What is the impact of water currents on a sailboat's navigation? 水流对帆船航行的影响是什么？
It has no effect on navigation 对航行没有影响
It can make steering more difficult 可能会使操控更困难
It only affects the crew's comfort 只影响船员的舒适度
It can help the boat move faster 它可以帮助船更快移动
What factors influence the choice of sail material? 选择帆材料的因素有哪些？
Color and design 颜色和设计
Weight and flexibility 重量和灵活性
Cost and durability 成本和耐用性
All of the above 以上所有因素
Which alternative forms of energy cause less pollution than burning carbon fuels?
Wind
Wave and water
Nuclear
Solar
How much time did your boat take to complete the sailboat race?
What did you learn from the sailboat making experience? You can talk about knowledge of materials, tools, process, engineering design and also science concepts.
What improvements will you make to your sailboat design for a future mini sailboat race?