OAR. Mechanical comprehension
Velocity involves 2 things. What are they? - answer Speed and direction
Jackie runs in a straight line. John runs the same distance, but in a zig zag. Who has
the bigger displacement? - answer They have the same displacement
Heat is transferred under which three methods - answer conduction, convection,
radiation
A type of heat transfer that occurs in solids and stationary fluids - answer conduction
What's the mechanical advantage of a wheel and axle - answer diameter of wheel ÷
diameter of axle
Gear Ratio Formula - answerNumber of teeth on driven gear ÷ Number of teeth on
driver teeth
a measure of the rotational or twisting force that causes an object to rotate around an
axis or pivot point. It is a key concept in mechanics and is often described as the
"rotational equivalent of force. - answerTorque
formula for torque - answerforce x distance
How many feet are in a yard - answer3 feet
Voltage across all elements is __________________________throughout a parallel
circuit - answerthe same
An object will float on top of a liquid if it's density is _____________ than the liquid it is
in and sink if the density is _________________ - answerless, greater
how to find the mechanical advantage of an inclined plane - answerlength of ramp ÷
height of ramp
To find the force required to lift an object up an inclined plane, you must divide the
_____________________________ by the ________________________________ -
answerweight of the object, mechanical advantage
If the mechanical advantage is 4 in a pulley system, then for every ________ ft that is
pulled, the weight will rise _________ ft - answer1,4
which type of pulley system provides mechanical advantage - answermoveable
, Describe a third class lever - answerfulcrum is at one end, effort is in between
What is the speed of sound in feet per second - answer1126
Heating a closed container will ________________________ the pressure -
answerincrease
Air is __________ dense at a higher altitude - answerless
Water flows ____________________ through narrow areas than wider - answerfaster
Two pendulums with different weights that are hanging by the same length of string will
take the same amount of time to make one swing - answertrue
adding salt to water causes the boiling point of the water to: - answerraise
adding salt to water causes the freezing point to - answerlower
Salt water takes longer to freeze and boil - answeryes
When a pendulum swings back, can it go faster than the point it started - answerno
If a cannon fires a cannonball horizontally and you drop a cannonball at the same time,
which will hit the ground first? - answerthey will hit the ground at the same time
How does forward speed affect the speed of falling - answerit does not
The rate of fall is the same no matter the weight of the object - answertrue
Mechanical advantage of levers - answerlength of effort arm ÷ length of resistance arm
if block A is suspended in the air by one rope, and block B is suspended in the air by 3
ropes, then the rope holding block A is under _________ the tension in block B -
answer3 times
Power formula - answerwork/time
___________ measure electrical resistance. It quantifies how much a material opposes
the flow of electric current. - answerOhms
measures the rate at which electrical energy is consumed or converted - answerpower
The force created by an object submerged in water is - answerequal to the weight of
water displaced by the volume of the object
Velocity involves 2 things. What are they? - answer Speed and direction
Jackie runs in a straight line. John runs the same distance, but in a zig zag. Who has
the bigger displacement? - answer They have the same displacement
Heat is transferred under which three methods - answer conduction, convection,
radiation
A type of heat transfer that occurs in solids and stationary fluids - answer conduction
What's the mechanical advantage of a wheel and axle - answer diameter of wheel ÷
diameter of axle
Gear Ratio Formula - answerNumber of teeth on driven gear ÷ Number of teeth on
driver teeth
a measure of the rotational or twisting force that causes an object to rotate around an
axis or pivot point. It is a key concept in mechanics and is often described as the
"rotational equivalent of force. - answerTorque
formula for torque - answerforce x distance
How many feet are in a yard - answer3 feet
Voltage across all elements is __________________________throughout a parallel
circuit - answerthe same
An object will float on top of a liquid if it's density is _____________ than the liquid it is
in and sink if the density is _________________ - answerless, greater
how to find the mechanical advantage of an inclined plane - answerlength of ramp ÷
height of ramp
To find the force required to lift an object up an inclined plane, you must divide the
_____________________________ by the ________________________________ -
answerweight of the object, mechanical advantage
If the mechanical advantage is 4 in a pulley system, then for every ________ ft that is
pulled, the weight will rise _________ ft - answer1,4
which type of pulley system provides mechanical advantage - answermoveable
, Describe a third class lever - answerfulcrum is at one end, effort is in between
What is the speed of sound in feet per second - answer1126
Heating a closed container will ________________________ the pressure -
answerincrease
Air is __________ dense at a higher altitude - answerless
Water flows ____________________ through narrow areas than wider - answerfaster
Two pendulums with different weights that are hanging by the same length of string will
take the same amount of time to make one swing - answertrue
adding salt to water causes the boiling point of the water to: - answerraise
adding salt to water causes the freezing point to - answerlower
Salt water takes longer to freeze and boil - answeryes
When a pendulum swings back, can it go faster than the point it started - answerno
If a cannon fires a cannonball horizontally and you drop a cannonball at the same time,
which will hit the ground first? - answerthey will hit the ground at the same time
How does forward speed affect the speed of falling - answerit does not
The rate of fall is the same no matter the weight of the object - answertrue
Mechanical advantage of levers - answerlength of effort arm ÷ length of resistance arm
if block A is suspended in the air by one rope, and block B is suspended in the air by 3
ropes, then the rope holding block A is under _________ the tension in block B -
answer3 times
Power formula - answerwork/time
___________ measure electrical resistance. It quantifies how much a material opposes
the flow of electric current. - answerOhms
measures the rate at which electrical energy is consumed or converted - answerpower
The force created by an object submerged in water is - answerequal to the weight of
water displaced by the volume of the object
