Force, Work, Energy
The force of a 2 kg object accelerated at 6 m/s^2.
What is 12 N.
What AMA and IMA stands for.
What is Actual Mechanical Advantage and Ideal Mechanical Advantage?
A simple machine designed to reduce the amount of force needed to lift an object by increasing the distance over which the force is applied?
What is an inclined plane?
The kinematic equation used when you know v(intial), acceleration, and time, and you want to find v(final).
What is v(f) = v(0) + at?
The formula for tan(θ).
What is sinθ/cosθ?
The SI unit for work.
What is Joules?
IMA of a lever.
What is Effort arm/Resistance arm?
The IMA of a wheel and axle where the wheel has a radius of 18 cm, and its axle has a radius of 3 cm.
What is 6?
The final velocity of a car starts at 5 m/s and accelerates at 2 m/s² for 4 seconds.
What is 13 m/s?
Opp = 3
Adj = 4
Hyp = 5
sinθ = ?
What is 3/5?
Work done on an object pushed with a force of 10 N, 2 meters right and 2 meters left.
What is 0 J?
The difference between IMA and AMA.
IMA: theoretical
AMA: accounts for real world energy loss(friction, heat, etc)
The reason a simple machine has an AMA of 6 but an IMA of 8.
What is friction, energy loss, etc?
The total distance travelled of a skateboard that starts from rest and accelerates at 3 m/s² for 4 seconds.
What is 24 m?
Opp = 8
Adj = 15
Hyp = 17
tanθ = ?
What is 8/15?
The formula for Kinetic and Potential Energy.
What is 1/2mv^2 and mgh?
IMA of a pulley.
What is count the number of supporting ropes?
The two simple machines combined to make a wheelbarrow.
What is a lever and wheel and axle?
Distance travelled by a runner that starts at 2 m/s and finishes at 8 m/s after 3 seconds.
What is 15 m?
The torque of a 1.5 m wrench pushed with a force of 4 N at 30 degrees.
What is 3 Nm?
The speed of an object right before it hits the ground dropped from 5 m high. (g = 10m/s^2)
Hint: Conservation of energy
What is 10 m/s^2?
The IMA of a lever with an effort arm of 2 m and a resistance arm of 0.5 m.
What is 4?
The formula for AMA of a machine.
What is output force/input force?
The time taken for a ball to drop 45 m. Assume g = 10m/s^2.
What is 3 s?
The torque of a 0.5 m wrench pushed at 90 degrees with a force of 10 N.
What is 5 Nm?