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WorksheetsUnit 9 Test
Total questions: 22
Worksheet time: 16mins
Name the simple machine for scissors.
Wedge
Inclined Plane
Lever
Screw
What is the formula to calculate the MA of an inclined plane?
height / length
length / height
Length x height / mass
mass / length
Name the simple machine for a light bulb.
Pulley
Inclined Plane
Screw
Lever
How can the MA of an inclined plane equal 1 ?
The MA is calculated by L / H
MA = L x H
The height and length need to be the same number to equal 1 MA
The height must equal more than the length.
What are two factors that make up the screw?
A rod with an inclined plane wrapped around it.
The diameter of the radius and the gap between the twists.
power = 125 W work = ? time= 25 sec
distance = ?
force = 3N
time = 60 s
work = 225 J
Name the simple machine for a cars wheels.
Lever
Wheel and Axle
Pulley
Inclined Plane
The amount of work done stays the same when using a simple machine but the force increases.
If a force is applied but the object doesn't move, no work is done
A machine that is composed of two or more simple machines is called a:
Complicated Machine
Compound Machine
Kinetic Machine
Inclined Machine
Effort is the ____________ placed on the simple machine to move the load.
