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WorksheetsEnergy and machines Lope de Vega
Total questions: 40
Worksheet time: 30mins
What tool is used for cutting wood?
Wheelbarrow
Saw
Hammer
Pulley
Which tool applies a strong pressure on an object?
Saw
Hammer
Pulley
Wheelbarrow
What is used for carrying heavy loads?
Drill
Hammer
Saw
Wheelbarrow
What was the most common source of energy in prehistory?
Human effort
Electricity
Factories
Robots effort
(a) is everything that produces change or transforms objects.
Which one is NOT a type of energy?
Chemical energy
Spiral energy
Mechanical energy
Thermal energy
Luminous energy
Which energy is stored in matter?
Electrical energy
Chemical energy
Thermal energy
Luminous energy
What energy can be stored in batteries?
Electrical energy
Thermal energy
Mechanical energy
Luminous energy
Which energy is observed when an object changes position?
(a)
What energy transfers heat from one object to another?
(a)
The Sun, fire and light bulbs are examples of…
Mechanical energy
Chemical energy
Luminous energy
Electrical energy
Human effort is an example of…
Chemical energy
Luminous energy
Mechanical energy
Thermal
The combustion engine of a car (fuel) is an example of…
Chemical energy
Mechanical energy
Luminous energy
Electrical energy
Food is an example of (a) energy
A radiator is an example of…
Mechanical energy
Luminous energy
Thermal energy
Chemical energy
Household appliances are examples of (a) energy
A waterfall is an example of...
Aquatic animal
Mechanical energy
Thermal energy
Luminous energy
A storm is an example of...
Electrical energy
Chemical energy
Thermal energy
Chemical energy
Humans invented (a) to help them do tasks more quickly and efficiently
Machines give us a mechanical advantage. They reduce the amount of…
Electricity
Heat
Effort
Ford
What is easier: lift an object or push it up a slope?
Lift an object
Push the object up a slope
Which one is the easiest?
A
B
C
Classify the machine: scissors
One lever
Two levers
Three levers
Inclined plane
Classify the machine: ramp
Lever
Inclined plane
Classify the machine: wheelbarrow
Lever
Inclined plane and wheel
Wheel
Lever and wheel
What was one of the most important and earliest inventions?
Wheel
Printing
Video games
Basketball
What is the force created by the contact of an object with the ground?
Magnetism
Friction
Inclined plane
Engine
Friction is in the same or opposite direction of the movement?
Same direction
Opposite direction
Which one is not a part of a pulley?
Wheel
Ramp
Rope
In a pulley you have to pull down on the rope to lift up the object
True
False
A compound machine is made of two or more…
(a)
Engines convert electrical or chemical energy into mechanical energy
True
False
(a) engines use fuels, such as petrol
What is used to transmit force from one wheel to another?
Gear
A third wheel
Axle
Inclined plane
What is the difference between wheel and gear?
Gears are smaller
Gears are bigger
Gears have teeth
Gears have hair
Gears: When one wheel turns, the other wheel turns in the same direction
True, same direction
False, opposite direction
In this type of engine, magnets are placed around cables
Electrical engine
Luminous engine
Combustion engine
Non-contact engine
Example of machine with electrical engine
Wheelbarrow
Hammer
Fridge
Pulley
Example of machine with combustion engine
Motorbike
Washing machine
Pulley
TV
Why are machines with a combustion engine usually used outdoors?
Because they expel gases that can be harmful
Because they prefer good weather
Because they need to breathe fresh air
Because they don't work indoors
