POE Final Exam

These are any of several devices with few or no moving parts that are used to modify motion.

• Simple Machines

• Robots

• Complex machines

• Wheel and Axle

Which of the following is NOT a simple machine?

• Pulley

• Lever

• Wedge

• Table

This is the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.

• Mechanical Advantage

• Mechanical Disadvantage

• Force

• Newtons

If we have a mechanical advantage that is larger than one, what does that mean? (Select all that apply)

• Less effort force is required to overcome the resistive force

• More effort force is required to overcome the resistive force

• More effort distance is required to overcome the resistive force

• Less effort distance is required to overcome the resistive force

If we have a mechanical advantage that is less than one, what does that mean? (Select all that apply)

• Less effort force is required to overcome the resistive force

• More effort force is required to overcome the resistive force

• More effort distance is required to overcome the resistive force

• Less effort distance is required to overcome the resistive force

Which mechanical advantage is theory-based calculations, doesn't take friction into consideration, and used in safety factor design calculations?

• Ideal Mechanical Advantage

• Actual Mechanical Advantage

Which mechanical advantage is inquiry-base calculations, takes friction into consideration and is used in efficiency calculations?

• Ideal Mechanical Advantage

• Actual Mechanical Advantage

Energy can exist in which two forms? (Choose all that apply)

• Potential Energy

• Thermal Energy

• Sound energy

• Kinetic Energy

This type of energy is connected with movement.

• Potential Energy

• Thermal Energy

• Sound energy

• Kinetic Energy

This type of energy is considered stored energy.

• Potential Energy

• Thermal Energy

• Sound energy

• Kinetic Energy