General
Gears and Pulleys
Mechanical Advantage
Levers, ramps, screws
Random
100
Ramps, wedges, levers, pulleys
What are examples of simple machines?
100
If one wheel of a two wheel gear system moves clockwise, then the other wheel moves _________
What is anticlockwise?
100
The general equation for Mechanical advantage is; MA = ______ / effort
What is load?
100
FLE=123
What is the mnemonic to remember where the fulcrum is in the classes of levers?
100
In a wheel, the strongest force is experienced near the _______
What is the axle? (not rim)
200
Is the energy needed to move something over a certain distance
What is the definition of work?
200
If one wheel of a two wheel gear system is large and the other is small, then the smaller wheel will move ________ than the larger wheel
What is faster?
200
If you use a double pulley, the distance the rope needs to be pulled is __________. However, the effort need to lift the object is _______.
What is doubled and halved?
200
The other name for a ramp
What is an inclined plane?
200
This is at the centre of every wheel
What is an axle?
300
Is the force required to move an object.
What is the definition of Effort?
300
Only changes the direction of the force, the effort needed to lift the object is the same.
What is a single pulley?
300
If the mechanical advantage is 4, it means ___________
What is 4 times easier to do the job?
300
Saws, scissors and knives are examples of this type of simple machine.
What is a wedge?
300
If the load is 12N and the effort is 6N, what is the mechanical advantage of the machine?
What is 2?
400
The object and it's weight
What is the definition of Load?
400
If you put in the same effort as if you were lifting the object, then the pulley has a mechanical advantage value of _____
What is one?
400
MA = length of effort arm/ length of resistance arm
How do you calculate the MA of a lever?
400
What's the trade off with a ramp (and with other simple machines) regarding effort and distance?
What is increased distance = decreased effort?
400
The piece of lab equipment you can use to lift masses and determine the force of the effort?
What is a spring (or Newton) balance?
500
Eggbeaters, staplers, robots are examples of these
What are some examples of complex machines?
500
A multiple pulley system is often called a block and tackle. If a system of two or more pulleys is strung together, the pulley system multiplies our effort so we can lift a heavier load. The pulley system is therefore a f_______ m________
What is a force multiplier?
500
MA = length of slope/height of slope
How do you calculate the MA of a ramp (screw or wedge also)?
500
All 3rd class levers are these
What are speed multipliers?
500
The work done if a 50N object is moved a distance of 0.1m?
What is 5N/m (or 5J)?
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