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WorksheetsScience Year 4: Machines
Total questions: 36
Worksheet time: 28mins
A lever consist of these things.
Load
Fulcrum
Effort
Machine
Which of the following are the benefits of using a simple machine?
Stylish.
Saves time.
Uses latest technology which are expensive.
Uses less energy.
The simple machine shown is a __________________.
Wheel and axle
Screw
Lever
Pulley
Which of the following is the best to lift an object high on to an object?
Wheel and axle
Screw
Lever
Pulley
If you have a heavy object which is to be moved daily, which of the following will help save time and energy?
Wheel and axle
Screw
Lever
Pulley
It has one pointed end and often used for cutting.
Wedge
Screw
Pulley
Lever
Which of the following simple machine is not found in a wheel barrow?
Screw
Wedge
Wheel and axle
Lever
The picture shows a part of a bicylce which is a ............... .
whell and axle
lever
gear
pulley
Which of the following is NOT an example of a complex machine?
bicycle
stairs
lawn mower
scissors
How many basic types of simple machines are there?
7
6
8
9
Can you name this simple machine?
wheel and axle
lever
pulley
wedge
A machine is used for a purpose to:
make work harder
prevent work being done
make work easier
make work more complicated
This simple machine helps force objects apart.
wedge
lever
pulley
inclined plane
What is a simple machine?
a device that has only one working motor
a device that makes work easier
a device that makes more work for a job
device that is made up of two or more machines
Which of the following is true about the lever?
It consists of two part
The fixed point is called the effort
Fulcrum and the load are two fixed points
Consists of load, force and fulcrum
"The effort is affected by the position between the fulcrum and the load"
What is the type of simple machine?
Wheel and axle
Inclined plane
Pulley
Lever
1) Wheel and axle
2) Gear
3) Screw
Which of the following devices consists of simple machines as listed above?
Wheelbarrow
Hand drill
Nail cutter
Scissors
Between A, B, C and D, Which is the fulcrum?
A
B
C
D
Which of the following tools uses the wedge principle?
P and Q
P and R
Q and S
R and S
Which inclined plane is required the greatest amount of force to move the metal block up?
A
B
C
D
The ____________ consists of a rod attached to a wheel, and makes it easier to move or turn things. A door knob is an example of this simple machine.
lever
pulley
wheel and axle
wedge
A ________________ is a combination of two or more
simple machines. Examples include scissors, wheelbarrow,
and a bicycle.
compound machine
quarter machine
simple machine
complex machine
Which of the following tools is the most sustainable to be used to harvest paddy?
Which method can help Rozita to open the lid easier?
use a thinner spoon
reduce the distance between Rozita's hand and the circular part of the tin
exert a stronger pushing force
increase the distance between Rozita's hand and the circular part of the spoon
A worker is facing difficulty to carry boxes out of the lorry. Which simple machine can help the worker?
Lever
Wedge
Inclined plane
Gear
