This is a series of pulleys that are used to make lifting an object easier.
What is a block and tackle?
100
An axe, a zipper, and a front tooth are example of this simple machine.
What is a wedge?
100
The work in joules when a force of 10 N is used to move an object over 35 m.
What is 350 J ?
100
This shape is involved with the President's office.
What is an oval?
(The Oval Office)
200
Work is a measure of newtons and this other measure.
What is meters?
200
This is known as the force exerted on the machine.
What is the input force?
200
A car's steering wheel is an example of this simple machine
What is wheel and axle?
200
Suppose that a wheel is rotated with 50 Nm of torque and the angle through which it moves is 2.2 radians. How much work is done rotating the wheel this much?
What is 110 J?
200
In the "Big Apple", the site of the famous ball drop on New Year's Eve has this shape in its name.
What is square?
(Times Square)
300
In order to do work on an object, the object must to do this as a result of the force exerted.
What is move some distance?
300
This is the force that causes any machine to lose efficiency.
What is friction?
300
An inclined plane wrapped around a central cylinder is called this
What is a screw?
300
You exert a force of 30 N to lift your Halloween bag 2m from the floor to a shelf.
What is 60 J ?
300
The oldest of the Seven Wonders of the Ancient World mentions this shape.
What is a pyramid?
400
The amount of work done on an object if 10 N of effort force is exerted over 2 meters.
What is 20 joules?
400
This is the ratio of work input to work output.
What is mechanical efficiency?
400
A single fixed pulley such as a flagpole, changes this factor of the input force (hint: not the amount)
What is the direction?
400
You do 4000 J of work using a sledge hammer. The sledge hammer does 3000 J of work on the spike. This is the efficiency of the sledge hammer.
What is 75% ?
400
This shape is associated with the imaginary area in the Atlantic Ocean that has supposedly had several boats and planes mysteriously disappear.
What is a triangle?
Bermuda Triangle
500
The distance a pulley is pulled if the work done is 75 joules and the effort force is 15 N.
What is 5 meters?
500
This is the mechanical advantage of a machine that requires 12 N of effort force to move a load of 84 N.
What is 7?
500
Door, wheel barrow, bottle opener are examples of this class of levers, seesaw, scissors, pliers are examples of this class of levers, and baseball bat, shovel, fishing pole are examples of this class of levers.
What is second, first, and third?
500
You do 600 J of work using a pulley. The pulley does 150 J of work lifting a beam. This is the efficiency of the pulley.
What is 25%?
500
This shape is in the name of the tallest man-made memorial in the U.S., located in St. Louis, Missouri