Table of Contents
How can speed be calculated?
The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time.
What is happening to the air that was in the balloon and its volume?
As the balloon volume decreases, pressure inside the balloon increases. It eventually is able to balance the outside air pressure. You end up with a balloon filled with cold high density air. If you warm air it will expand and density will decrease until the pressure inside and outside the parcel are equal.
How do you find the buoyancy of a balloon?
The buoyant force is calculated by finding the weight of the fluid displaced by the body. The balloon would displace its VOLUME of fluid. It is a cube balloon, so it is easy to measure its volume. Next, multiply the volume by the weight density of the fluid and the result would be the measure of the buoyant force.
How do you calculate the mass of air displaced by a balloon?
Answer:
- List all of the variables given. Mass of balloon = 80 kg. Volume of balloon = 1200 m3 Density of Helium = .18 kg/m3 Density of Air = 1.3 kg/m3
- Determine the the total mass that can be lifted by the helium balloon. Mass lifted = mass of the volume of fluid displaced. Mass = (1200 m3)( 1.3 kg/m3) Mass = 1560 kg.
How do you calculate the speed of sound in air?
SPEED=DISTANCE/TIME. To work out the speed of the sound in metres per second, divide the distance in metres by the average time in seconds. For example 170 metres divided by 0.50 seconds = 340 m/s. You have calculated the speed of sound!
Why does the volume of a balloon increases?
What do you think happens to the volume of gas inside the balloon? As the temperature increases, the gas particles absorb more heat energy. They speed up and move farther away from one another. So the increase in temperature causes an increase in volume.
How do you calculate the force acting on a water balloon?
Free body diagram: Upward force = buoyant force (weight of the water displaced by the balloon). Downward force = force due to gravity (weight of the balloon) + drag force (depends on speed, shape of balloon, properties of water). You’d set up the force equation, ideally with Depth as the independent variable.
What causes the pressure inside a balloon to increase?
This force is caused by the air outsidethe parcel (air surrounding the parcel). Pressure decreases with increasing altitude. The pressure of the air at the bottom of a parcel pushing upward is slightly stronger than the pressure of the air at the top of the balloon that is pushing downward.
How do you make a balloon float in a pool?
The easy way is to blow up a dozen balloons to different sizes, release them from the bottom of a pool at different depths and time how long it takes them to get to the surface at at lest 3 different temperatures. Make sure you include all the conditions you want use.
How do you find the volume of an irregular shape balloon?
how can we find the volume of a irregular shape balloon? Method 1. Fill the balloon with water, then weigh it. The volume is then: Volume (cm^3) = Weight (gm)/1 (gm/cm^3), (neglecting the weight of the empty balloon.) Method 2. Fill the balloon with air. Then, under water, let the air escape into an inverted bottle that has been filled with water.