Try this as often as you like.

You will get a different set of questions each time you attempt this quiz.

You will get a different set of questions each time you attempt this quiz.

- The unit of pressure is the
- Pascal
- Newton
- Metre per second
- Kilogram

- An alternative unit of pressure is the
- N/m
^{2} - m/s
- m/s
^{2} - m
^{3}

- N/m
- Mountain bikes are designed differently to racing bikes. In what way do they differ?
- Mountain bikes have tyres which have more grip on the surface.
- Mountain bikes have narrower tyres than racing bikes.
- Mountain bikes are much heavier.
- Mountain bikes have have no front brakes.

- Which one of the following devices may be used to measure pressure?
- Barometer
- Pressure cooker
- Thermometer
- Radiometer

- Which one of the following instruments is used to measure atmospheric pressure?
- A block weighing 10 newtons rests on a floor. What pressure does the block exert on the floor?
- 1,000 Pa
- 100 Pa
- 10 Pa
- 0.0001 Pa

- What pressure does an elephant of weight 40,000 N exert on the ground if each of his four feet has a surface area of 200 cm
^{2}(0.02 m^{2})?- 500,000 Pa
- 2,000,000 Pa
- 800 Pa
- 3,200 Pa

- A wooden block exerts a pressure of 10 Pa on a table. The area are the block in contact with the table is 0.4 m
^{2}. What is the weight of the block?- 40 N
- 100.4 N
- 250 N
- 99.6 N

- The lengths of a block of wood are 6 cm, 4 cm and 3 cm.

On what side must the block be placed in order to exert the least pressure on the surface?- 6 cm x 4 cm
- 6 cm x 3 cm
- 4 cm x 3 cm
- Any of the surfaces

- The pressure that a block of wood exerts on a table will be greatest when
- the area in contact with the surface is least.
- the area in contact with the surface is greatest.
- the surface of the table is rubbed with oil.
- the surface of the table is rubbed with sand paper.

- The diagram shows a spurting cylinder with water spurting out at A, B and C.

Which one of the following statements is correct?- The spout with the greatest pressure pushes the water furthest.
- The spout with the least pressure pushes the water furthest.
- The pressure at spout A is greater than the pressure at spout B.
- Water at C travels the furthest because there is more water at the bottom of the cylinder.

- Atmospheric pressure is
- the pressure at a point due to the weight of the air above it.
- caused by the weather present at that particular moment.
- greatest when there are clouds overhead.
- measured in newtons.

- Which one of the following statements about atmospheric pressure is incorrect?
- After driving up a mountainside in a car, our ears may ‘pop’. This is caused by a change in the atmospheric pressure.
- Atmospheric pressure decreases as you climb above sea level.
- Atmospheric pressure is much greater under the sea.
- The moon has no atmosphere, so the atmospheric pressure there is zero.

- In which of the following locations is atmospheric pressure the greatest?
- In the Titanic ship, which is located 4 km under the sea.
- On top of the Eiffel tower in Paris.
- On the surface of the moon.
- In other space.

- In which one of the following locations will atmospheric pressure be least?
- On the moon
- On Mount Everest
- At sea level
- About 100 metres under the sea

- Which one of the following instruments measures atmospheric pressure?
- Barometer
- Thermometer
- Multimeter
- Metre-stick

- Early barometers used mercury to measure the pressure of the atmosphere. Nowadays, mercury is considered a health and safety risk, and so a different type of barometer is used.

What is the name given to this type of barometer?- Aneroid barometer
- Vacuum barometer
- Simple barometer
- Alcohol barometer

- A diagram like that shown is often used to display the weather forecast on TV.

The curved lines join regions of equal pressure.

What are these curved lined called?- Isobars
- isohyets
- Warm fronts
- Cold fronts

- Study the weather chart in the diagram and select where the strongest winds are most likely to occur?
- Q
- P
- R
- S

- Which one of the following types of weather is usually associated with low pressure?
- Wet and windy
- Dry and sunny
- Frosty
- Cold

- Which one of the following types of weather is usually associated with high pressure?
- Dry and sunny
- Wet and windy
- Snow
- Stormy

- A rectangular block as shown is to be placed on a table such that it exerts the least pressure on the table.

Which side must be placed in contact with the table?- Yellow
- Red
- Blue
- It doesn't matter

- A barometer may be modified and used in an aircraft to measure a quantity other than atmospheric pressure.

What is the name and use of this modified instrument?- Altimeter to measure altitude.
- Altimeter to measure cabin pressure.
- Ammeter to measure altitude.
- Newton- meter to measure weight.

- In calculating the pressure exerted by an object, which one of the following formulae is used?
- P = F÷A
- P = A÷F
- P = F x A
- P = F + A

- The unit of pressure, the Pascal may also be written as
- N/m
^{2} - Nm
- Nm
^{2} - N/m

- N/m
- The block shown in the diagram has a weight of 20 newtons.

What pressure does is exert on the table?- 0.4 N/cm
^{2} - 1,000 Pa
- 50 N/cm
^{2} - 0.4 Pa

- 0.4 N/cm
- The picture shows a dam on the river Drina in Serbia.

How does the water pressure on both sides of the dam compare?- The pressure on the higher side is much greater than the pressure on the lower side.
- The pressure on the lower side is much greater than the pressure on the higher side.
- The pressures are the same on both sides.

- A block has sides measuring 20 cm, 40 cm and 50 cm.

On which side should be block be placed in order to exert the greatest pressure?- 20 x 40 cm
- 20 x 50 cm
- 40 x 50 cm
- It doesn't matter

- The atmospheric pressure on top of Mount Everest is less than that at sea level because
- there is less air on top of Mount Everest.
- there is less oxygen on top of Mount Everest.
- it is colder on Mount Everest.
- there is more snow on Mount Everest.

- Which one of the following statements about the pressure caused by a force acting on an area, is not correct?
- The greater the area, the greater the pressure.
- The greater the force, the greater the pressure.
- As the area gets smaller, the pressure increases.
- A larger area will produce a smaller pressure.

- The cube shown has a weight of 1,600 N.

What pressure does it exert?- 400 Pa
- 200 Pa
- 800 Pa
- 266.6 Pa

- The apparatus shown is an early type of barometer.

What are the parts labelled X and Y?- X = vacuum, Y = mercury.
- X = vacuum, Y = water.
- X = air, Y = mercury.
- X = air, Y = water.

- Why does atmospheric pressure decrease with height?
- The amount of air gets less as height increases.
- There is no gravity at high altitudes.
- Air weighs less at high altitudes.
- There are less clouds as height increases.

- The diagram shows a tank full of water. The mass of the water

in the tank is 48 000 kg.

Calculate the approximate pressure

that it exerts on the base of the tank.- 120,000 Pa
- 12,000 Pa
- 240,000 Pa
- 24,000 Pa

- The diagram shows a container with three spouts. The container is filled with water.

Jets of water pour out of the spouts. Why does the jet of water from the bottom spout travel the furthest out from the container?- There is greatest pressure at the greatest depth.
- Pressure decreases as the depth of water increases.
- There is more water available to flow out from the bottom.
- The pressure of the water decreases as the depth increases.

- The diagram is an Atlantic weather chart.

Use the chart to predict two weather conditions that you might expect for Ireland.

Select**two**options from below. - A household water supply has a water tank in the attic.

The water pressure at the upstairs tap is lower than at the downstairs tap.

Give a reason why this is the case.- Pressure increases with height.
- Pressure decreases with height.
- The water has to travel further to get to the downstairs tap.
- The downstairs tap is closer to sea-level where the pressure is zero.

- If a metal block applies a force of 20 N on an area of 5 cm
^{2}, find the pressure

being applied by the block.- 4 N/cm
^{2} - 0.8 N/cm
^{2} - 100 N/cm
^{2} - 0.25 N/cm
^{2}

- 4 N/cm
- A swimming pool has a base whose surface area is 80 m
^{2}.

If the weight of water in the pool is 940,000 N, what is the pressure exerted by the water on the base of the pool?- 11,750 Pa
- 11.75 Pa
- 75,200,000 N
- 940,080 N

- The atmospheric pressure at the base of the mountain shown was measured an 101 kPa.

The atmospheric pressure was also measured at positions X, Y and Z on the mountain.

From the following, select the three correct values recorded for X, Y and Z.- X = 98 KPa, Y = 96 kPa, Z = 100 kPa
- X = 98 KPa, Y = 100 kPa, Z = 96 kPa
- X = 98 KPa, Y = 96 kPa, Z = 96 kPa
- X = 100 KPa, Y = 96 kPa, Z = 95 kPa