WorksheetsEnergy, Power, & Transportation
Total questions: 56
Worksheet time: 42mins
Energy cannot be created or destroyed.
True
False
What is the original source of energy on Earth?
the sun
producers
consumers
decomposers
Which of the following show a change from potential energy to kinetic energy?
A sled sliding up a hill
A ball that is thrown into the air
A ball rolling down a hill
A rubber band being stretched
What transformation occurs in a toaster?
Electrical to radiant
Electrical to thermal
Thermal to mechanical
Solar to electrical
What type of energy transformation occurs when a piece of wood burns?
Electrical energy is released as radiant energy
Stored chemical energy is released as thermal energy
Mechanical energy is stored as chemical energy
No transformation occurs
At what point does the biker have the greatest Kinetic Energy?
Point A
Point B
Point C
Point D
At what point does the biker have the greatest Potential Energy?
Point A
Point B
Point C
Point D
What type of energy is transformed in the Energy Conversion shown in the image below?
Nuclear Energy
Chemical Energy
Thermal Energy
Electrical Energy
units for work are
newtons
joules
meters
seconds
In a series circuit, what will happen if the path for the electrical current is broken by a burned out bulb?
The electrical current will stop fllowing and none of the bulbs will light up.
The electrical current will continue flowing and the other bulbs will light up.
The energy source will continue to move the electric charge through the circuit.
Which type of circuit has more than one path for the electrical current?
The series circuit
The parallel circuit
They both have more than one path
Neither circuit has more than one path for the electrical current
An electric current is defined as the flow of ? through a conductor.
electrons
protons
nuclei
ohms
What is the unit of measurement for resistance?
Voltage
Ampere
Watts
Ohms
This allows energy to flow.
conductor
insulator
What type of current is flowing in the circuit ?
Alternating current
Direct current
Both
None
(I X R)
Voltage divided by Resistance
(V / R)
Current
Power
Ohms
Watts
For increasing the voltage ___________ is used.
Step up transformer
Step down transformer
Current transformer
This picture is an example of a ___________
Step- Up Transformer
Step- Down Transformer
DC Motor
AC Generator
Which of the following describes a motor?
It creates mechanical energy.
It doesn't need an electrical source to function.
It doesn't follow the Law of Conservation of Energy.
It converts electrical energy into mechanical energy.
In internal combustion engines, each cylinder contains a...
shaft
piston
chamber
camshaft
When the intake valve closes. The piston moves..
downwards
upwards
sideways
clockwise
The combustion of fuel is produced in enclosed, sealed spaces called....
fuel injectors
combustion chambers
spark plugs
piston cylinders
The main function of the engine _______ is to let air in and out of the cylinders.
Camshaft
Valves
Rocker arm
Connecting Rod
A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes to complete one operating cycle. What are the 4 basic steps in the correct order?
Intake, Power , Compression, Exhaust
Compression, Power, Intake, Exhaust
Intake, Exhaust, Compression, Power
Intake, Compression, Power, Exhaust
During the intake stroke, ________________________________.
Spent gases are forced out of the combustion chamber from the piston's travel from BDC to TDC
Fuel is supplied to the combustion chamber
Air - fuel mixture is deposited into the combustion chamber
The piston travels from BDC to TDC to compress the fuel charge prior to ignition
Ignition of the charge occurs in between the following two strokes: _________________ and _________________.
Intake, Power,
Compression, Power
Power, Exhaust
Intake, Compression
Which of the following is not an internal combustion engine
2-stroke petrol engine
steam turbine
4-stroke petrol engine
diesel engine
What is mechanical advantage?
It is a simple machine
It is a type of gear train that multiplies force
It is the amount of help you can get from using a machine to do something instead of just doing it with purely your own strength.
If the drive gear has 100 teeth and the driven gear has 10 teeth, how much faster or slower will the driven gear spin?
10 times slower
100 times slower
10 times faster
100 times faster
Where would you find a cam shaft?
food mixer
washing machine
car
pillar drill
What is one purpose of idler gears
Change the gear ratio
Change the total power available at the output gear
Change the rotational direction of the output gear
Change the rotational speed at the output gear
What are the two branches of Fluid Power.
Pneumatics and Hydrogen
Pneumatics and Horsepower
Pneumatics and Hydraulics
Pneumatics and Horoscops
The basic idea behind any hydraulic system is very simple: Force that is applied at one point is tranitted to another point using________
A compressible fluid
An incompressible fluid
A cold compress
A hot compress
Where can you look on your car to see a good example of a basic piston-driven hydraulic system?
The power steering system
The instrument panel
The brake system
The radio system
The great thing about hydraulic systems is that the pipe connecting the two cylinders can be__________
Disconnected, yet still operate
Any length and shape
Filled with air
All of the above
Which of the following sentence is true?
Gases are easy to squish
Liquids are easy to squish
What is pneumatic systems ?
Pneumatic is a system that is worked using the air pressure or air flow
pneumatic is a system that is worked using the air pressure or air flow but
controlled using electrical devices
pneumatic is a system that is worked using fluid
Pneumatic is a system that is worked using the air pressure or air flow but
controlled using chemical fluid
Pascal's Law states that a fluid transmits pressure equally in all directions.
True
False
The basic idea behind any hydraulic system is very simple: Force that is applied at one point is trasmitted to another point using________
A compressible fluid
An incompressible fluid
A cold compress
A hot compress
What does this image represent?
A pulley
A wedge
A lever
A wheel and axle
When you turn the pulley on the left what happens to the pulley on the right?
It turns the same direction but slower.
It turns the same direction but faster.
It turns the opposite direction.
It does not move.
When you turn the pulley on the left what happens to the pulley on the right?
It turns the same direction and turns slower.
It turns the same direction and turns faster
It turns the opposite direction and turns slower.
It turns the opposite direction and turns faster.
When you turn pulley A clockwise, what direction will pulley D turn?
Clockwise.
Anticlockwise.
It will get faster.
It will not move.
