Wheel and Axle
Pulleys
Inclined Planes
Levers
Screws
Wedges
Bonus
100
Give 2 examples of everyday objects that use the wheel and axle.
Many correct responses including: Car, skateboard, wagons, bike, shopping cart, etc
100
Give 2 everyday examples of pulleys.
Many examples including:
water well, clothes line, bike-chain, elevators, curtains, flag pole.
100
Name 2 examples of everyday objects that are inclined planes.
Ramps, stairs, slides, bed of a dump truck , many more
100
Give two examples of everyday objects that are levers.
see-saw, scissors, nail clippers, back of a hammer, hockey stick, your arms.
100
Give an example of an everyday object that is a screw (other than a normal screw).
Jar lid
lightbulb
car jack
more?
100
Give two examples of an everyday object that is a wedge.
●Knife
●Axe
●Door Stopper
●Sewing Needle
100
What is work?
Work is a force applied to an object that moves over a distance.
200
True or False. A Wheel and axle is a shaft that is
attached to the center of a larger wheel so that they rotate separately.
•False: Wheel and axle – a shaft (axle) that is attached to the center of a larger wheel so that they rotate together
200
How does a pulley reduce work?
By reducing the effort needed to lift an object by changing the direction and increasing the applied force.
200
How does an inclined plane make work easier?
It is easier to slide a heavy object up the flat, slanted surface rather than carry it from one level to another.
You distance that you need to carry the load will increase, but it will require less force to move it.
200
How does a lever reduce work?
The lever makes doing work easier by reducing the force needed to move an object. In order to reduce the force needed, the distance over which the force is applied must be increased.
200
True or False: A screw is used to secure some things
True!
200
How does a wedge make work easier?
A wedge reduces the amount of force needed to split objects.
200
Who was Rube Goldberg?
Answer: Rube Goldberg was an American author, inventor, and illustrator.
300
What is the equation to calculate work?
Work = Force x Distance
300
What vocabulary word should be under the red arrow in this picture?
Effort or applied force
300
What is the equation for force?
Force = Work / Distance
300
This is the word for the point on which a lever rests or is supported and on which it pivots?
The fulcrum
300
true or false: A screw is a type of compound machine
false: it's a simple machine
300
True or False: a wedge is made of more than one inclined plane
True! 
300
What is a Rube Goldberg machine?
A Rube Goldberg machine is a complex machine designed to do a simple task. It usually involves humor of some sort.
400
True or False: a pulley system also utilizes a wheel and axle.
True! A pulley system uses a grooved wheel attached to an axle and a rope to rotate it.
400
What is the equation to calculate distance?
Distance = Work / Force
400
You are moving boxes into a moving van. Point to where the effort or force is coming from in this diagram:
The force is coming from pushing the box up the ramp from the bottom.
400
Where is the effort in a third-class lever, and give an example of one.
The effort is in the middle; between the fulcrum and the load.
400
What is another term for the ridges on a screw?
Threads
400
What is engineering?
The branch of science and technology concerned with the design, building, and use of engines, machines, and structures.
400
List and point to the simple machines you see in this picture: 
Pulley
inclined plane
screw
wheel and axle
500
How do wheels reduce work?
They reduce work by the axle rotating faster than the wheel, so increasing the speed of work and decreasing friction.
500
If a person does 500J of work moving a box 25m, how much force did he exert?
A: He did 20N of force.
500
True or False: All inclined planes make work much easier. Explain.
False! A steep inclined plane may not help make work easier as the amount of force will not be greatly reduced.
500
True or False: The wheelbarrow is an example of a 1st class lever. If so, where does the effort come from, where is the load, and where is the fulcrum?
False! The wheelbarrow is a 2nd class lever. Your hands on the handles give the effort. The load is inside the wheelbarrow. The wheel is the fulcrum.
500
A teacher is using 15N of force to move her most annoying student 5m away from her desk. How much work does she do?
She does 75 Joules of work.
500
True or False: all wedges are meant to be moved in order to do their job. Explain
False. Some wedges are used to prevent movement, such as a door wedge.
500
Work is determine by what 2 measurements?
Force X Distance