Work
Work Problems
Mechanical Advantage Problems
Simple Machines
Miscellaneous
100
This is the use of force to move an object over a distance.
What is work?
100
If the amount of force to push a crate of teddy bears was 50 N and the crate moved with a total distance of 10 m, this is the amount of work.
What is 500J?
100
This is the formula for mechanical advantage.
What is Mechanical Advantage = Resistance Force / Effort Force?
100
This is what an inclined plane is usually referred to as.
What is a ramp?
100
This is the benefit or help a machine gives us to do work.
What is mechanical advantage?
200
For work to be done on an object, the object has to do this.
What is move?
200
Steve moved a box using a force of 10N from one side of the room to the other, a total of 15m. This is the total amount of work Steve did.
What is 150J?
200
Josh used a ramp to push a cart into a moving van with an effort force of 100N. If the resistance force was 800N, this is the mechanical advantage of the ramp.
What is 8?
200
This is an inclined plane wrapped around a cylinder.
What is a screw?
200
This is what you count to find the mechanical advantage of a pulley system.
What are the ropes?
300
This is the unit of measure of work.
What is the Joule?
300
Bob used a force of 500N to pull a box up 7m into his treehouse. This is the amount of work Bob did.
What is 3500J?
300
Bob used a crowbar to pull a nail out of wall with an effort force of 250. If the resistance force was 1250N, this is the mechanical advantage of the crowbar?
What is 5?
300
This is a modified inclined plane iwth a thin & thick edge.
What is a wedge?
300
This is the force that a person puts into a machine.
What is the effort force?
400
These are the two ways that a machine can help us do work.
What are change the size of a force and change the direction of a force?
400
Tom pushed his lawnmower across the yard a distance of 50m. If the amount of work Tom did was 5000 J, this is the amount of force Tom used.
What is 100N?
400
Sara used a pulley with a mechanical advantage of 10 to pull a weight up into a window. If the effort force she exerted was 50N, this is the resistance force of the weight.
What is 500N?
400
This type of pulley only changes the direction of the force.
What is a fiexed pulley?
400
These are the three parts of a lever.
What are the resistance arm, effort arm, and fulcrum?
500
This is the formula for work.
What is Work = Force x Distance
500
Becky pushed her desk using a force of 200N. If the amount of work Becky did was 1400J, this is the distance Becky pushed her desk.
What is 7m?
500
Susan was using a ramp with a mechanical advantage of 6 to push a cart that was resisting with a force of 3000N. This is the effort force she was exerting on the cart.
What is 500N?
500
This is how the threads on a screw help us do work.
What is reduces the force needed to drive the screw into the surrounding material?
500
This is what will happen if a simple machine increases the force you use.
What is decrease distance?
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