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WorksheetsReview Test
Total questions: 20
Worksheet time: 10mins
What simple machine has a fulcrum that may be situated between the load and the effort, or either side of the object?
lever
screw
wedge
pulley
What do you call an inclined plane that is wrapped into a spiral?
wedge
screw
inclined plane
lever
What simple machine is made up of two inclined planes place back to back?
wedge
pulley
wheel and axle
lever
Ramp is an example of what simple machine?
wedge
screw
wheel and axle
inclined plane
A windlass is an example of what simple machine?
inclined plane
pulley
screw
wedge
Which of the following is an example of a second-class lever?
seesaw
paddle
wheelbarrow
shovel
Which of the following reduces the efficiency of a machine?
energy
work
friction
motion
What is the energy that binds atoms together?
light
chemical
sound
mechanical
Which of the following simple machines consists of a rope that runs around a grooved wheel?
wheel and axle
pulley
lever
wedge
Which of these simple machines is an example of a wheel and axle?
ramp
axe
windlass
jack
The mechanical energy of the windmill is transformed into _________ which gives light to homes, schools, offices, and establishments.
chemical energy
nuclear energy
electrical energy
radiant energy
Which of the following converts electrical energy to light, heat, and sound?
electric bulb
television
electric fan
flat iron
Which does NOT describe a wedge?
It consists of two inclined planes put back to back.
It has sharp edges and a base.
It is used to cut things or split things apart.
It is used to transfer the heavy load to a higher place.
Which energy transformation happens when you switch on the flashlight?
chemical energy to electrical energy to light and heat energy
electrical energy to mechanical energy to light and heat energy
light and heat energy to chemical energy to electrical energy
mechanical energy to light and heat energy to chemical energy
What will you use to transfer a heavy load to a higher place?
lever and wedge
screw and wedge
inclined plane and pulley
screw and wheel and axle
Which does NOT tell the importance of electrical energy?
It lights homes, offices, and schools.
It runs appliances and other gadgets.
It makes work faster and easier.
It gives the body energy from food to work.
Your food possesses energy. What energy transformation occurs in your body?
Chemical energy to Mechanical energy
Chemical energy to Electrical energy
Mechanical energy to Heat energy
Mechanical energy to Chemical energy
Which of the following can be both a lever and a wedge?
broom
pin
knife
scissors
What simple machine is used to cut things into pieces, split things apart, or fasten two things?
lever
wedge
screw
inclined plane
Which of the following is a lever?
chisel
knife
pin
hammer
