WorksheetsCenter of Gravity Engine Basics
Total questions: 33
Worksheet time: 23mins
Where will be the centre of gravity of a uniform rod lies ?
At its end
At its middle point
At its centre of its cross sectional area
Depends upon its material
Where the center of gravity of a circle lies? (a)
What is one way you might increase the stability of an object? (a)
Why is the car on the right more stable? (a)
(a) refers to the volume of air and fuel the engines can draw into its cylinder(s) during an intake stroke.
An action in which a force applied to an object causes a displacement of the object.
Work
An influence that tends to change the motion of an object or causes stress in a stationary object.
Force
A measure of the amount of work that can be performed in a given amount of time.
Power
What is the function of oil in an engine?
to clean
to lubricate
to cool
all of these
What direction is the piston moving on the intake stroke?
left
up
down
right
What direction is the piston moving on the exhaust stroke?
left
up
down
right
What are the valves doing on the compression stroke?
both open
intake open
exhaust closed
Intake closed
exhaust open
both closed
The four strokes of an internal combustion engine are
in, out, combustion, exhaust
intake, out take, compression, power
intake, compression, combustion, exhaust
in, out, power, compression
The four stroke engine cycle begins with the (a) stroke.
On the exhaust stroke .........
the intake and the exhaust valves are opened
the intake valve is closed
the intake and the exhaust valves are closed
the exhaust valve opens; the intake valve is closed
What is it?
combustion stroke
exhaust stroke
intake stroke
compression stroke
What is it?
combustion stroke
comression stroke
intake stroke
exhaust stroke
what is it?
exhaust stroke
combustion stroke
compression stroke
intake stroke
During the first stroke (Intake), what valves are open-if any?
Both closed
Intake valve open, Exhaust closed.
Both are open
Intake valve closed, Exhaust valve open.
During the combustion stroke the piston moves________
Revolutions per minute (RPM) is the measurement of (a)
A car engine's job is to
convert fuel into heat
convert fuel into motion
convert fuel into exhaust
To make something burn or catch fire
ignite
compress
exhaust
press
Work, heat, and exhaust are all examples of outputs of an engine.
True
False
In a four stroke engine, gasoline must be mixed with the correct amount of _____________.
Water
Oil
Carbon dioxide
Air
What is it?
valve
crankshaft
bottom
wrench
What is stability?
the ability of an object to maintain its balance after being disturbed
the ability of an object to resist balancing even when you ask it politely
the ability of an object to maintain its balance after listening to Down with the Sickness
the magic of some objects to stay right side up through pure charisma
If an object has equal density throughout, what can be assumed about the e center of gravity?
it can be assumed to be located at the same spot as the upper right edge
it can be assumed to be located at the same spot as the centroid
it can be assumed to be countered by the normal force multiplied by gravity
nothing, don't ever make assumptions or guesses under any circumstances, let life surprise you
How could you increase the torque felt by your creature?
decrease the size of the counter weight
decrease the distance or length of the counter weight to it's farthest edge
add a crown so it becomes BOSS level
increase the distance or length of the counter weight or increase the weight of the counter weight
