A force of 800 Newtons is needed to push a car across a lot. Two students push the car 40 meters. How much work is done?
What is 32,000 Joules
100
A 1000 N mountain climber scales a 100 m cliff. How much work is done?
What is 1000,00 Joules
100
Attached to something else, often a rope
What is movable pulley
100
Work is measured in
What is joules
100
Consists of a bar that is free to rotate around a fixed point
What is lever
200
You exert an effort force of 736N downward as you push a pedal. The resulting load force that causes the bike to move forward is 81N. What is the MA?
What is 0.11....NO UNITS
200
What is the efficiency of a machine when the input is 263 J andthe output is 142 J?
What is 54%
200
Energy of motion
What is kinetic
200
Force is measured in
What is Newtons
200
What class lever has the loadt in the middle?
What is Class 2
300
The 2nd gear has 64 teeth on it while the 1st gear has 102. What would the speed ratio be?
What is 1.6...NO UNITS
300
To pull a weed out of a garden, you can apply a force of 50 N to the shovel. The shovel applies a force of 600 N to the weed. What is the mechanical advantage of the shovel?
What is 12
300
Energy transferred from one place to another
What is transmission
300
What formula has no units attached to their answer
What is MA
300
Bones and joints operate as what? (in order)
What is lever & fulcrum
400
An inclined plane allows you to do 280 J of useful work on a refrigerator that you are sliding upward along the plane. If the work that you have to do is 760 J, what is the
efficiency of the plane?
What is 37%
400
Calculate the pressure produced by a force of 800 N acting on an area of 2.0 m2
What is 400 Pascals
400
States that pressure is exerted in all directions evenly in a enclosed container
What is Pascals Law
400
Formula for efficiency
What is output over input X 100
400
Hydraulics use the force of a ______?
What is liquid
500
The input work you do on a can opener is 24 J. The output workthe can opener does is 18 J. What is the efficiency of the canopener?
What is 75%
500
The pressure of a gas contained in a cylinder with a movable piston is 300 Pa. The area of the piston is 0.5 m2. Calculate the force that is exerted on the piston.