Systems and Simple Machines Quiz

What is a physical system?

• A system that is purely theoretical

• A system that relies on social interactions

• A system that relies on a group of physical parts to perform a function

• A system that only exists in nature

Which of the following is an example of a natural social system?

• Education system

• Health care system

• Waste management system

• Bee colony

What is a subsystem?

• A system that operates independently

• A smaller system within a larger system

• A system that does not perform any function

• A theoretical concept

What is the function of a mechanism in a subsystem?

• To change one type of force or energy into another

• To operate independently

• To provide theoretical support

• To act as a control system

What is an example of a simple machine?

• Can opener

• Solar system

• GPS

• Inclined plane

What is the purpose of a lever?

• To act as a control system

• To provide optical support

• To generate electrical energy

• To change or redirect force to move a load

What is a gear?

• A modified wheel and axle

• A type of lever

• A type of inclined plane

• A type of pulley

What is the function of a pulley?

• To provide optical support

• To generate electrical energy

• To act as a control system

• To help lift heavy loads or change the direction of a force

What is friction?

• The force that accelerates motion

• The force that provides optical support

• The force that generates electrical energy

• The force that resists motion between two objects in contact

What does systems thinking involve?

• Thinking about control systems

• Thinking about how parts of a system work together and their impact on people and the environment

• Thinking about theoretical concepts

• Thinking about independent systems