Science Test Prep

What is a fulcrum?

• A term used in physics to describe the force exerted on an object.
• A device used to measure weight.
• A type of pulley used in mechanical systems.
• A point on which a lever pivots or rotates.

What are the three class levers?

• Primary lever, Secondary lever, Tertiary lever
• Lever A, Lever B, Lever C
• Initial lever, Intermediate lever, Final lever
• First-class lever, Second-class lever, Third-class lever

What is work?

• Work is the measure of energy transfer that occurs when an object is moved by a force applied to it.
• Work is the distance traveled by an object.
• Work is the amount of force applied to an object.
• Work is the measure of time it takes to complete a task.

What is Power?

• Ability or capacity to do something or act in a particular way.
• Physical strength or force
• Electrical energy
• Political control or influence

What is efficiency?

• Efficiency is the ability to accomplish a task or produce a desired outcome with the most amount of wasted time, effort, or resources.
• Efficiency is the ability to accomplish a task or produce a desired outcome with average amount of wasted time, effort, or resources.
• Efficiency is the ability to accomplish a task or produce a desired outcome with no wasted time, effort, or resources.
• Efficiency is the ability to accomplish a task or produce a desired outcome with the least amount of wasted time, effort, or resources.

What is the mechanical advatange difference for each different class levers?

• The mechanical advantage difference is determined by the length of the lever arms.
• The mechanical advantage difference is greatest for class 1 levers and smallest for class 3 levers.
• The mechanical advantage difference is always the same for each class of lever.
• The mechanical advantage difference varies depending on the class of lever.

How have systems evolved?

• Advancements in technology, innovation, and the understanding of complex processes.
• Shift towards automation and artificial intelligence.
• Increased efficiency and productivity in various industries.
• Development of new software, hardware, and algorithms.

What are 5 types of machines?

What are 5 types of inputs?

What are 5 types of Outputs?