WorksheetsMTL2 Science Learner Outcome 4
Total questions: 17
Worksheet time: 9mins
What is the SI unit of force?
Pascal
Newton
Joule
Watt
Which unit is used to measure pressure in the SI system?
Newton
Kilogram
Pascal
Litre
What does acceleration measure?
The distance an object travels
The rate at which an object changes its velocity
The amount of force applied to an object
The pressure exerted on a surface
What is atmospheric pressure typically measured in?
Joules
Newtons
Bars, Pascals, or Millibars
Litres per second
Which of the following best describes pressure?
The amount of fluid flowing per second
The force exerted on a surface per unit area
The rate of temperature change
The total energy stored in a system
What is the formula used to calculate force due to gravity?
Mass ÷ 9.81
Mass × 9.81
Volume × 9.81
Pressure × Area
If a cistern contains 100 litres of water, what is the force acting on it due to gravity?
100 N
981 N
1000 N
9.81 N
What is the formula for calculating pressure?
Pressure = Force × Area
Pressure = Force ÷ Area
Pressure = Mass × Volume
Pressure = Volume ÷ Force
Which type of water pressure is measured when water is not flowing?
Dynamic pressure
Static pressure
Atmospheric pressure
Kinetic pressure
How much pressure does 10 metres of water head produce?
0.1 bar
1 bar
10 bar
100 bar
What effect can excessive flow rate and pressure have on plumbing systems?
Improved water quality
Reduced pipe diameter
Noise and pipe erosion
Increased water temperature
What happens to water velocity and flow rate when static pressure is increased?
Velocity decreases, flow rate increases
Both velocity and flow rate increase
Velocity increases, flow rate decreases
Both velocity and flow rate decrease
What happens when water flows through a reduced pipe size?
Pressure increases, velocity decreases
Pressure and velocity both increase
Pressure decreases, velocity increases
Pressure and velocity both decrease
What effect does increasing pipe size have on water flow?
Increases velocity and decreases pressure
Decreases velocity and increases pressure
Increases both velocity and pressure
Decreases both velocity and pressure
Which of the following materials offers the most resistance to water flow due to internal roughness?
Copper
Plastic
Low Carbon Steel
PVC
What is the effect of multiple elbows or bends in a pipe run?
Increased flow rate
Reduced resistance
Increased pressure
Increased resistance and reduced pressure
What is dynamic pressure in a plumbing system?
Pressure when water is not flowing
Pressure caused by gravity
Pressure when water is flowing
Pressure at the highest point in the system
