Exploring Wheels and Axles in POE 1 1 1 Part 4

What happens when the axle drives the wheel?

• The wheel moves without any force

• Mechanical advantage is less than one

• Mechanical advantage is greater than one

• The axle does not move

How is the circumference of a wheel calculated?

• Pi times the diameter

• Pi times the radius

• Two times the diameter

• Two times pi times the radius

What is the formula for ideal mechanical advantage of a wheel and axle?

• Diameter of wheel over diameter of axle

• Radius of wheel over radius of axle

• Distance of effort over distance of resistance

• Circumference of wheel over circumference of axle

What does a mechanical advantage greater than one indicate?

• Less force out than put in

• No force needed

• More force out than put in

• Equal force in and out

How do you calculate the actual mechanical advantage?

• Force of effort over force of resistance

• Force of resistance over force of effort

• 200 pounds over 70 pounds

• 70 pounds over 200 pounds

What is the efficiency of a system with an AMA of 2.86 and an IMA of 3.33?

• 90%

• 86.5%

• 75%

• 85.9%

What role does the wheel play when it drives the axle?

• Neither force of effort nor resistance

• Both force of effort and resistance

• Force of effort

• Force of resistance

What is the result when the wheel is driving the axle in terms of force?

• The system requires more force to move

• The system does not move

• The system moves without any force

• The system requires less force to move

What does the force of resistance represent in wheels and axles?

• The force needed to move the axle

• The force the wheel applies to move

• The energy put into the system

• What is being moved or overcome

In the context of wheels and axles, what does the force of effort signify?

• The energy or force put into the system

• The movement of the axle

• The resistance faced by the wheel

• The outcome of the system's movement