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Year 8 science

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1.
1 point
sissors are an example of what type of lever?
2.
1 point
pulling a nail out of a piece of wood using a hammer is anexample of whih type of lever?
3.
1 point
To make an object move or change position, we need to apply a force. This force is called the ________?
4.
1 point
force magnifiers
5.
1 point
What is the name given to the pivot point of a lever
6.
1 point
What is the name of an inclined plane that
moves through another object and
changes the direction of a downward
force to a sideways force.
7.
1 point
What is the name of 3 simple machines that are classified as inclined planes
8.
1 point
_________ are toothed wheels that transmit
a rotational force to another gear or
device, such as a wheel.
9.
1 point
a wheel barrow is an example of which type of lever?
10.
1 point
distance magnifiers
11.
1 point
In a first class lever the fulcrum is situated in the
12.
1 point
The weight of the object is called the
13.
1 point
how many classes of levers are there?
14.
1 point
In complex machines, force must
often be transferred from one part of
a machine to another in order to control
a moving part. Fluids inside highpressure
tubing are often used to
transmit a large force. What is this called?
15.
1 point
Fill in the blanks
m________ a_________= load moved by a machine รท effort applied to the machine
16.
1 point
________ is produced when a force causes
something to turn
17.
1 point
Does friction increase or decrease the effort that must be applied to the machine
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