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WorksheetsEngineering Semester Review
Total questions: 18
Worksheet time: 9mins
What is the formula for calculating the efficiency score of a bridge?
Mass of the bridge: 7 lbs.
Mass supported: 250 lbs.
35
.028
250/7
7/250
What is icon 18?
mirror
erase
stretch
scale
What is icon 13?
mirror
erase
stretch
copy
A tool used to make curved cuts and is ideal for rough CO2 car shapes.
What machine is being referenced?
none of these
lathe
band saw
drill press
You should clamp down your material before operating the drill press.
False
True
When proposing a design to others, you should include a top, bottom and side view.
True
False
It is not important to measure your materials before making a pen or any project.
True
False
Force that slows an object down because air cannot move around it.
Inertia
Drill Press
Drag
Friction
It is important to wear eye protection, closed- toe shoes, and tie back loose articles of clothing when working in a (a) .
What is icon 21?
mirror
rotate
stretch
copy
Formula for work?
W=D+F
W=D/F
W=FD
W=F/D
An inclined plane is a sloping ramp up which heavy loads can be raised.
True
False
What is a simple machine?
they make work easier
they are complicated
they include many different components
they decrease force
What type of simple machine is found on the cap of a pickle jar?
inclined plane
lever
pulley
screw
Two examples of a pulley :
catapult & teeter totter
lightbulb & screw
knife & axe blade
flagpole hoist & blinds
What simple machine is this?
inclined plane
wheel and axle
screw
lever
A seesaw is an example of ___.
inclined plane
wedge
pulley
lever
The fixed point on a lever is called?
load
resistance
fulcrum
bar
