Work and Simple Machines


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2 Work Work and Simple Machines Simple Machines Mechanical Advantage Calculating MA Misc FINAL JEOPARDY Go To Score Card
3 Question: Work: 200 To calculate work, you need to know these two things. What is force and distance?
4 Work: 400 Question: The work you do a simple machine is called this. What is input or effort?
5 Question: Work: 600 The work a simple machine does to an object is called this. What is output or resistance?
6 Question: Work: 800 For work to occur on an object, the force must do this. What is be in the same direction as the motion?
7 Question: Work: 1000 This is the mechanical efficiency of a machine that requires 2000N of force applied over 5m to lift a 10,000N object.75m. What is 75%?
8 Question: Simple Machines: 200 This type of pulley only changes the direction of the force acting on an object. What is a single fixed pulley?
9 Question: Simple Machines: 400 Simple machines make work easier by doing one, two or all three of these. What is change input force, change input distance or change input direction?
10 Question: Simple Machines: rd class levers, like a broom, make work easier by doing this. What is multiples the input distance?
11 Question: Simple Machines: 800 When a screwdriver is used to open a can of paint these two changes occur to the input force. What is size and direction?
12 Simple Machines: 1000 Question: These changes occur to the force and distance when the longer ramp is used to move the object to the top of the ramp. What is less force is used over a longer distance.
13 Question: Mechanical Advantage: 200 Mechanical advantage is a comparison of these two forces. What is output to input? MA = OF / IF
14 Mechanical Advantage: 400 Question: This simple machine always has a MA less than 1. What is a third class lever?
15 Question: Mechanical Advantage: 600 You can tell this by comparing the MA of two machines. What is which one makes work easier?
16 Question: Mechanical Advantage: 800 The MA of a first class lever can be increased by doing this. What is move the fulcrum and load closer together, or increase the length of the effort arm.
17 Question: Mechanical Advantage: 1000 Wheel and axle A has a greater MA than wheel and axle B because of this. What is the ratio of the wheel to the axle is greater in A?
18 Calculating Mechanical Advantage: 200 Question: This is the MA of the pulley system. What is 1?
19 Calculating Mechanical Advantage: 400 Question: This is the MA of the pulley system. What is 4?
20 Calculating Mechanical Advantage: 600 Question: This is the MA of the lever. 2 m 12 m IF What is 6?
21 Calculating Mechanical Advantage: 800 Question: If the input force to a simple machine is 20 N and the output force is 100 N, this is the MA of the simple machine. What is 5?
22 Calculating Mechanical Advantage: 1000 Question: This is the MA of the wheel and axle. 10 cm 25 cm What is 2.5?
23 Miscellaneous: 200 Question: This is the equation for power. What is P = W / t (power = work / time)?
24 Question: Miscellaneous: 400 A machine that uses two or more simple machines is called this. What is compound machine?
25 Miscellaneous: 600 Question: The joints in your body act as this part of a lever. What is fulcrum.
26 Question: Miscellaneous: 800 The amount of power required to move a cart 100 m with a force of 550 N in 10s. What is P = W / t = 55,000 J / 10s = 5,500 watts?
27 Question: Miscellaneous: 1000 Scissors are considered compound machines because they have these two simple machines. What is a lever and wedge?
28 Final Jeopardy Category: Work Place your wager. Question: Tom wants to use a ramp with a MA of 10 to roll a cart into the back of a truck. Joe wants to use a pulley system with a MA of 5 to get the cart into the back of the truck. Who will do the most work to get the cart into the back of the truck if friction is the same for both? They will do the SAME amount of work.
29 Unknown Question Question: Not sure why this slide is here. Unknown
30 Daily Double You can Wager All or Part of Your Points on This Question
31 Daily Double You can Wager All or Part of Your Points on This Question
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