On Earth, sucking through a straw reduces air pressure inside, allowing atmospheric pressure to push liquid up. On the Moon, there is no atmospheric pressure, so there is no external force to push the liquid into the straw, making it impossible to sip water.
Related Questions:
- How are we able to break a metal wire by bending it repeatedly?
- A spring, having spring constant k when loaded with mass m, is cut into two equal parts. One of the parts is loaded with the same mass m again. What will be its new spring constant?
- Why do static fluids always exert a force perpendicular to the surface?
- How can a small car lifter lift a load heavier than itself?
- While walking on a trampoline, do you feel more pressure when you stand still or jump up and down? Why does pressure change with movement?
- How does the shape of a thumb pin help it penetrate surfaces easily?
- If you blow up a balloon and then tie it closed, why does it stay inflated even though you stop blowing? How does pressure play a role here?
- Why is the inner airtight layer of a space suit designed to maintain a constant pressure around the astronaut?
- If a liquid has twice the density of mercury, what will be the height of the liquid column in a barometer?
- Q.1 How does physics play an important role in our life?
- Q.2 Estimate your age in minutes and seconds.
- Q.3 What base quantities are involved in these derived physical quantities; force, pressure, power and charge.
- Q.4 Show that prefix micro is thousand times smaller than prefix milli.
- Q5. Justify that displacement is a vector quantity while energy is a scalar quantity.
- Q6. Screw gauge can give more precise length than vernier calipers. Briefly explain why?
- Q.7 Differentiate between Mechanical Stopwatch and Digital Stopwatch.
- Q.8 How measuring cylinder is used to measure the volume of an irregularly shaped stone?
- Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder?
- Q.10 Why do we need to consider significant digits in measurements?
- Q12. Differentiate between precision and accuracy.