Introduction of Matter
What is matter?
Anything that has mass and takes up space.
What's a boiling point?
The point where liquid boils.
What is acceleration?
The rate at which velocity changes.
What is a medium?
The material through which a wave travels.
What is energy?
The ability to do work or cause change.
What are the two types of mixtures?
Heterogeneous and Homogeneous.
True or False. Evaporation occurs below the surface of liquid.
False.
WHat is Newton's first law commonly referred to as?
Inertia
What is the formula for finding speed?
Wavelength x Frequency
What are two basic types of Energy?
Kinetic and Potential energy
How is density determined?
Density = mass รท volume
What is sublimation?
When a solid turns right into a gas without passing through the liquid state.
What two factors affect the force of friction?
The type of surface and how hard the surfaces are pushed together.
What are the two types of interference?
Constructive and Destructive.
How do you find gravitational potential energy?
Weight x Height
What is a physical change?
A form or appearance of matter that doesn't turn any substance in the matter into a different substance.
Dry ice is the common name for what.......
Solid carbon dioxide
Why don't action and reaction forces cancel out?
They act on different objects.
True or False. Waves change direction by reflection, refraction, and diffusion.
False
What does the law of conservation of energy state?
Energy cannot be created or destroyed.
What change is the melting of ice?
Endothermic change.
What scientist was elected to the French Academy of Sciences in 1785 for their contribution toward the research of gasses?
Jacques Charles
What is the meaning of the word centripetal?
center-seeking
Why did the Galloping Gertie collapse?
Because of resonance.
True or False. Lightning, Batteries, and electrical lines are all forms of electromagnetic energy.
False.