Energy
What is the most abundant fossil fuel? Also found underground.
Define centroid.
the geometric center of an object.
what is stress?
a measure of the internal forces within a material, caused by externally applied forces or other factors like temperature changes or deformation.
what is a force?
A push or pull on an object.
What is a cantilever?
A rigid structural element that extends horizontally and is supported at only one end.
What is an example of renewable energy?
Solar, Wind, Hydropower
Centroid of a rectangle equation.
x=B/2
y=H/2
what is strain?
a measure of the deformation of a material caused by stress.
Newtons second law states?
The acceleration of an object is proportional to the net force acting on the object and inversely proportional to the object’s mass. This law describes the acceleration of an object in the direction of the net force applied to it.
F=MxA
what is deflection?
How much a structural member displaces when a force is applied to it.
What energy source is the main source of transportation?
Oil
centroid of a right triangle equation.
x=B/3
y=H/3
equation for stress.
σ (stress) = F (force) / A (area)
Newtons first law states?
An object in a state of rest or uniform motion will continue to be so unless acted upon by a net force. This law describes the relationship between velocity and forces.
what is area moment of inertia?
A geometric property of an area (measured in inches4) and reflects important information about how the cross-sectional area is distributed about a neutral axis.
Why is nuclear energy not a renewable resource?
There is a limited amount of uranium to use for energy.
centroid of a semi-circle equation.
x=r
y=4r/3𝜋
equation for strain.
ε (strain) = ΔL (change in length) / L0 (initial length)
Newtons third law states?
For every action force, there is an equal and opposite reaction force. This law describes action-reaction pairs. Force pairs act in opposite directions and have the same magnitude.
what is modulus of elasticity?
Modulus of Elasticity (E) is the ratio of the increment of some specified form of stress to the increment of some specified form of strain. Also known as the coefficient of elasticity, elasticity modulus, elastic modulus.
Explain how one type of renewable energy is created.
Wind: wind spins propellers and moves generator which creates electricity
Hydro: water flow rotates a turbine which turns generator to create electricity
Solar: Solar panels absorb suns rays and converts them to electricity.
What is the difference between compression and tension?
compression is a push while tension is a pull.
A solid circular titanium control rod is supporting 7,000 pounds of axial tension force, where stress must not exceed 42,000 psi. Assume that the modulus of elasticity of the titanium is 16,500,000 psi, and the rod must elongate no more than 0.20 inch. Determine: Minimum rod diameter and Maximum rod length.
Minimum rod diameter: 0.46 in
Maximum rod length: 249 in
How do newtons laws work together?
Newton's three laws of motion work together to explain how objects move and interact. They establish a framework for understanding inertia, the relationship between force, mass, and acceleration, and the concept of action-reaction pairs.
what is hooke's law?
The law stating that the stress of a solid is directly proportional to the strain applied to it.