Needs vs. Wants
What is the difference between needs and wants?
Needs are essentials for survival, while wants are desires that are not necessary for survival.
How has technology changed the way we communicate?
Allows for instant messaging, video calls, and social media interactions.
Define a wave.
A disturbance that carries energy through a medium or space.
Give an example of a need.
Food, water, shelter.
Name a tool that has changed the field of medicine. (Which tool helps doctors nowadays?)
MRI machines, robotic surgery tools, x-ray, etc.
Differentiate between longitudinal and transverse waves.
Possible answer: Longitudinal waves have vibrations parallel to the direction of wave propagation, while transverse waves have vibrations perpendicular to the direction of wave propagation.
Provide an example of a want.
Video games, designer clothing.
How has technology impacted the field of education? (Which tools help teachers and the classrooms nowadays)
E-learning platforms, digital textbooks, online resources.
Give an example of a mechanical wave.
Sound waves, seismic waves
Why is it important to differentiate between needs and wants?
Understanding this difference helps in making better decisions.
What are some benefits of using tools in various industries?
Increased efficiency, accuracy, and productivity.
How do electromagnetic waves differ from mechanical waves?
Electromagnetic waves can travel through a vacuum (space) while mechanical waves require a medium to propagate.
How can you prioritize needs over wants?
By focusing on fulfilling essential needs first before spending on wants.
Name an ancient tool
axes, pottery wheel...
Explain how waves transfer energy.
Waves transfer energy by causing particles in the medium to oscillate back and forth.