Work and Power
AMA
IMA
Name that Machine
Miscellaneous
100
The units for work and power
What is joules for measuring work and watts for power?
100
Because of ________ AMA is always less than IMA
What is friction?
100
Ideal mechanical advantage has an efficiency of 100% because ________ is not included.
What is friction?
100
A flat, sloped surface.
What is an inclined plane?
100
The fixed point that a lever pivots around.
What is a fulcrum?
200
The equation to calculate work
What is work = force x distance
200
The unit for mechanical advantage.
What is none?
200
Formula to calculate the IMA of an inclined plane.
What is length of the incline/ height of the incline?
200
A machine that is thick at one end, and tapers to a thin edge at the other end.
What is a wedge?
200
A lightbulb is an example of this machine.
What is a screw?
300
The two equations to calculate power
What is power= work/ time? What is power= (force x distance) / time?
300
The equation to find actual mechanical advantage.
What is AMA= output force/ input force?
300
Way to find the IMA of a pulley
What is counting the number of ropes?
300
Made up of a grooved wheel with a cable around it.
What is a pulley?
300
When a machine increases the distance, what happens to force?
What is it decreases?
400
Nancy sprints up a hill pushing a wagon and Kyle walks up a hill pushing a wagon. The person who did more work.
Who is neither? Time does not impact work.
400
You use 10 newtons to pull down a rope on a pulley. The pulley lifts a box weighing 30 newtons. The mechanical advantage.
What is 3?
400
You push down on a lever 10 meters away from the fulcrum. A box on the opposite end is 5 meters away from the fulcrum. The ideal mechanical advantage.
What is 2?
400
The type of pulley that is made up of a fixed and moveable pulley.
What is a block and tackle?
400
The three ways a machine makes work easier.
What is changing force, direction, or direction?
500
Susan pushes a box across the room a distance of 2 meters. She uses 20 newtons of force in 5 seconds. Her amount of power.
What is 8 watts?
500
Jake uses 15 newtons of force to push a box weighing 45 newtons up a ramp that is 3 meters long. The mechanical advantage of the ramp.
What is 3?
500
A wheel and axle has a the wheel with a radius of 10 and the axle with a diameter of 10. Its ideal mechanical advantage.
What is 2?
500
The type of lever that has the fulcrum at one end, output force in the middle, and input force at the other end.
What is a second class lever?
500
The two ways you can calculate efficiency.
What is output (work/ input work) x 100%? What is (AMA/ IMA) x 100%
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