Kinematics
Something that is a vector has what two components
Magnitude and direction
SI unit of Forces
Newtons
What are the units of Power?
Watt
What type of energy would the food we eat be considred?
Chemical potential
What are the units of pressure?
Pascals
It two objects have the same charge and are brought together, what happens to them?
They repel
Distance and speed are both this...
scalar
What is the law of inertia?
Objects in motion stay in motion, objects at rest stay at rest unless something acts on it.
What are the units of energy?
Joules
If I am on a trampoline, at which point is my kinetic energy the greatest?
Right before i hit the trampoline on the way down from my jump.
How is heat related to the viscosity of fluids?
it is inversely related
What are the units of resistance?
Ohms
What is the value we to free falling objects without air resistance. (The value of gravity)
9.81 m/s^2
What is the equation used to model Newtons second law?
F=ma
For ramps, what is the greatest factor influencing mechanical advantage?
Steepness.
What is the general efficiency range of human made machines?
20-40%
Us being able to push out toothpaste from the bottle is related to this principle.
Pascals principle
If i pass a charge by touching another object, this is called?
Conduction
The formula for velocity
X(final)-X(initial)/t(final)-t(initial)
This type of friction always has the highest value.
Static friction
This type of lever has the fulcrum on one end, followed by the force in in the middle and the force out at the other end.
Third class lever
Name two types of nonrenewable energy forms.
Coal, natural gas, oil, and nuclear
Explain why thinner objects emit a greater pressure than wider objects.
Because area is inversely correlated to pressure.
What is the function of an ammeter?
Determines the current of a circuit
What are the SI units of momentum.
Kg*m/s
The concept that objects are acceleration to the center of circular motion.
Centripetal force
What is it called where a pulley system has multiple ropes holding something up?
block and tackle.
This type of energy used dams to turn generators.
Hydroelectric
The idea of how the fluid speed and fluid pressure are related are expressed by this principle.
Bernoulli
What is analogous to the charge variable in the electric force equation compared to the gravitation equation?
Mass