Motion
What is Newtons first law?
Law of Inertia, states that an object at rest stays at rest, and an object in motion stays in motion
What is the difference in Renewable vs. Nonrenewable Energy?
Renewable - never runs out
Nonrenewable - will run out
What are two examples of insulators and two examples of conductors?
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Examples of conductors, materials that let electricity flow easily, include metals like copper, silver, gold, aluminum, steel, and brass, along with non-metals like graphite, and liquids like saltwater or seawater, with copper being common for wires due to its efficiency and affordability
Common examples of insulators, materials that resist electrical or thermal flow, include plastic, rubber, glass, wood, porcelain, and air, used for safety coatings on wires, handles, and in building insulation to contain heat/electricity and prevent shocks
Define acceleration.
The rate at which velocity changes
What is the difference between distance and displacement?
Distance is total length of a path traveled between the initial start to the final position
Displacement is the shortest distance possible between the initial start to the final position
What are 3 of the 4 types of friction?
Static/Rolling/Kinetic/Fluid
A bus covers 200 m in 5 hours. Find its average speed.
40 miles per hour
Kinetic vs Potential Energy.
Kinetic - energy in motion
Potential - stored energy
What does the formula triangle look like for speed, distance + time?
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S l T
What are two of the three methods for heat transfer?
Conduction, Convection + Radiation
Name three types of energy forms.
Electrical, Nuclear, Potential, Sound, Kinetic, Chemical, Thermal and Radiant
Define Thermal Energy.
The energy that comes from the movement of particles in a substance
What is the difference between average speed and constant speed?
Average speed changes over time, whereas constant speed stays the same
The faster particles move the _________ a substance will be. The slower particles move the _______ a substance will be.
The faster particles move the warmer a substance will be. The slower particles move the cooler a substance will be.
Give two examples of two different types of friction in action.
Static, Rolling, Kinetic, + Fluid.
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Acceleration Formula.
Final velocity - Initial velocity
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Final time - Initial Time
Provide 2 out of 3 of Newtons Laws
In the first law, Law of Inertia, an object will not change its motion unless a force acts on it.
In the second law, F=MxA, the force on an object is equal to its mass times its acceleration.
In the third law, Action/Reaction, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
What is the difference between thermal insulators/conductors compared to electrical insulators/conductors?
Thermal allows or stops the flow of heat, while electrical allows or stops the flow of electricity
Provide 2 of the 3 formulas:
Speed/Distance/Time
S=d/t
D=s x t
T=s/d
Conservation of Energy.
States that energy cannot be created or destroyed, only transformed from one form to another