A given amount of gas is held inside a container.  The volume of the container can be changed using a movable piston.  Which of the following will cause the pressure which the gas exerts on the walls of the container to decrease?Pushing the piston inwards (so that the volume of the container decreases)Heating the gasPulling the piston outwards (so that the volume of the container increases)Pumping more gas into (increasing the number of particles inside) the container

The air pressure inside a tyre is 200 kPa.  Calculate the force which this air will exert on the inside surface of the tyre if it has a surface area of 0.1 m2.20,000 N2,000,000 N2,000 N20 N2A given amount of gas is held inside a container.  The volume of the container can be changed using a movable piston.  Which of the following will cause the pressure which the gas exerts on the walls of the container to decrease?Pumping more gas into (increasing the number of particles inside) the containerHeating the gasPulling the piston outwards (so that the volume of the container increases)Pushing the piston inwards (so that the volume of the container decreases)3A submarine experiences a pressure of 100,000 Pa at the surface of the sea.  Calculate the total pressure which it will experience when it descends to a depth of 100 metres.  The density of seawater is approximately 1,030 kg/m3, and the value of g is 10 N/kg.1,030,000 Pa110,300 Pa1,130,000 Pa10,300 Pa4A boy is swimming 5 metres below the surface of a swimming pool.  How will the pressure exerted on him change when he swims back to the surface?  The density of the water in the pool is approximately 1000 kg/m3 and the value of g is 10 N/kg.The pressure will decrease by 500 PaThe pressure will increase by 50,000 PaThe pressure will increase by 500 PaThe pressure will decrease by 50,000 Pa5An object is described as having neutral buoyancy.  Which of the following statements do NOT apply to it?It will be in a state of equilibriumIt is less dense than the fluid in which it is submergedThe pressure exerted on it will increase with depthIts weight is equal in magnitude to the upthrust force acting on it6Which of the following describes how atmospheric pressure (the pressure of the air that makes up our atmosphere) changes with altitude?It increases as altitude increasesIt remains constantWhether it increases, decreases or stays the same depends on local weather conditionsIt decreases as altitude increases

If the volume of a container of gas is reduced, what will happen to the pressure inside the container?Group of answer choicesThe pressure will increase.The pressure will decrease.The pressure will not change.The pressure depends on the type of gas

Which of these changes would NOT cause an increase in the pressure of a contained gas?Group of answer choicesThe volume of the container is increased.The temperature is increased.The average kinetic energy of the gas in increased.More of the gas is added to the container.

Select all that applyWhich of the following statements correctly describe gas pressure? Select all that apply.Multiple select question.Pressure is caused by gas particles striking the walls of the container.Only gases in containers exert pressure on objects.Shrinking the container surface area will lower the pressure inside.Adding more gas to a container will increase the pressure inside.

If the temperature of a flexible, gas-filled container is decreased at a fixed pressure, the volume of the container will ______.Multiple choice question.increaseremain the samedecrease